25261260202488 has 32 divisors (see below), whose sum is σ = 63155423952000. Its totient is φ = 8420116941408.

The previous prime is 25261260202427. The next prime is 25261260202511. The reversal of 25261260202488 is 88420206216252.

It is a happy number.

It is a super-2 number, since 2×25261260202488² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18264306 + ... + 19598657.

It is an arithmetic number, because the mean of its divisors is an integer number (1973606998500).

Almost surely, 2^{25261260202488} is an apocalyptic number.

It is an amenable number.

25261260202488 is an abundant number, since it is smaller than the sum of its proper divisors (37894163749512).

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

25261260202488 is a wasteful number, since it uses less digits than its factorization.

25261260202488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37890771 (or 37890767 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 48.

The spelling of 25261260202488 in words is "twenty-five trillion, two hundred sixty-one billion, two hundred sixty million, two hundred two thousand, four hundred eighty-eight".