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26250102125 = 5313109148201
BaseRepresentation
bin11000011100101000…
…001100010101101101
32111202102012100112122
4120130220030111231
5412230011232000
620020434442325
71616334120662
oct303450142555
974672170478
1026250102125
1110150553285
1251071333a5
132624520710
1413b03d9a69
15a39808085
hex61ca0c56d

26250102125 has 32 divisors (see below), whose sum is σ = 35604048480. Its totient is φ = 19206720000.

The previous prime is 26250102121. The next prime is 26250102161. The reversal of 26250102125 is 52120105262.

It can be written as a sum of positive squares in 16 ways, for example, as 25233640201 + 1016461924 = 158851^2 + 31882^2 .

It is not a de Polignac number, because 26250102125 - 22 = 26250102121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26250102094 and 26250102103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26250102121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103025 + ... + 251225.

It is an arithmetic number, because the mean of its divisors is an integer number (1112626515).

Almost surely, 226250102125 is an apocalyptic number.

26250102125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26250102125 is a deficient number, since it is larger than the sum of its proper divisors (9353946355).

26250102125 is a wasteful number, since it uses less digits than its factorization.

26250102125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148338 (or 148328 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 26250102125 its reverse (52120105262), we get a palindrome (78370207387).

The spelling of 26250102125 in words is "twenty-six billion, two hundred fifty million, one hundred two thousand, one hundred twenty-five".

Divisors: 1 5 13 25 65 109 125 325 545 1417 1625 2725 7085 13625 35425 148201 177125 741005 1926613 3705025 9633065 16153909 18525125 48165325 80769545 210000817 240826625 403847725 1050004085 2019238625 5250020425 26250102125