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25025496384 = 263724361861
BaseRepresentation
bin10111010011101000…
…101100010101000000
32101121001212221021110
4113103220230111000
5402223011341014
615255131123320
71544104131600
oct272350542500
971531787243
1025025496384
11a682270919
124a24ba3540
13248a8c2635
1412d5902c00
159b705bd59
hex5d3a2c540

25025496384 has 168 divisors, whose sum is σ = 78816147168. Its totient is φ = 6983746560.

The previous prime is 25025496383. The next prime is 25025496407. The reversal of 25025496384 is 48369452052.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25025496383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 373614 + ... + 435474.

Almost surely, 225025496384 is an apocalyptic number.

25025496384 is a gapful number since it is divisible by the number (24) 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 25025496384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39408073584).

25025496384 is an abundant number, since it is smaller than the sum of its proper divisors (53790650784).

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

25025496384 is a wasteful number, since it uses less digits than its factorization.

25025496384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61933 (or 61916 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 25025496384 in words is "twenty-five billion, twenty-five million, four hundred ninety-six thousand, three hundred eighty-four".