25115202492 has 24 divisors (see below), whose sum is σ = 58635056256. Its totient is φ = 8367031728.

The previous prime is 25115202479. The next prime is 25115202527. The reversal of 25115202492 is 29420251152.

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, 565518 + ... + 608309.

It is an arithmetic number, because the mean of its divisors is an integer number (2443127344).

Almost surely, 2^25115202492 is an apocalyptic number.

It is an amenable number.

25115202492 is an abundant number, since it is smaller than the sum of its proper divisors (33519853764).

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

25115202492 is a wasteful number, since it uses less digits than its factorization.

25115202492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175617 (or 1175615 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 25115202492 in words is "twenty-five billion, one hundred fifteen million, two hundred two thousand, four hundred ninety-two".