25260235136 has 32 divisors (see below), whose sum is σ = 51550528680. Its totient is φ = 12322063360.

The previous prime is 25260235123. The next prime is 25260235151. The reversal of 25260235136 is 63153206252.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 25260235096 and 25260235105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2401406 + ... + 2411901.

Almost surely, 2^25260235136 is an apocalyptic number.

It is an amenable number.

25260235136 is an abundant number, since it is smaller than the sum of its proper divisors (26290293544).

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

25260235136 is an equidigital number, since it uses as much as digits as its factorization.

25260235136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813362 (or 4813350 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 25260235136 in words is "twenty-five billion, two hundred sixty million, two hundred thirty-five thousand, one hundred thirty-six".