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25997850482032 = 24111332513495139
BaseRepresentation
bin1011110100101000110001…
…01001001001010101110000
310102001100222220022020020101
411322110120221021111300
511401422044210411112
6131143125253322144
75322165653646622
oct572243051112560
9112040886266211
1025997850482032
11831369891a860
122aba683636354
131167782208ac0
1465c434790c12
153013e5274757
hex17a518a49570

25997850482032 has 80 divisors (see below), whose sum is σ = 59195145018240. Its totient is φ = 10904830560000.

The previous prime is 25997850481991. The next prime is 25997850482053. The reversal of 25997850482032 is 23028405879952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5690719 + ... + 9185857.

It is an arithmetic number, because the mean of its divisors is an integer number (739939312728).

Almost surely, 225997850482032 is an apocalyptic number.

25997850482032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25997850482032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29597572509120).

25997850482032 is an abundant number, since it is smaller than the sum of its proper divisors (33197294536208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25997850482032 is a wasteful number, since it uses less digits than its factorization.

25997850482032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498422 (or 3498416 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 64.

The spelling of 25997850482032 in words is "twenty-five trillion, nine hundred ninety-seven billion, eight hundred fifty million, four hundred eighty-two thousand, thirty-two".

Divisors: 1 2 4 8 11 13 16 22 26 44 52 88 104 143 176 208 286 572 1144 2288 3251 6502 13004 26008 35761 42263 52016 71522 84526 143044 169052 286088 338104 464893 572176 676208 929786 1859572 3495139 3719144 6990278 7438288 13980556 27961112 38446529 45436807 55922224 76893058 90873614 153786116 181747228 307572232 363494456 499804877 615144464 726988912 999609754 1999219508 3998439016 7996878032 11362696889 22725393778 45450787556 90901575112 124989665779 147715059557 181803150224 249979331558 295430119114 499958663116 590860238228 999917326232 1181720476456 1624865655127 1999834652464 2363440952912 3249731310254 6499462620508 12998925241016 25997850482032