25065438902 has 16 divisors (see below), whose sum is σ = 43002638592. Its totient is φ = 10734002280.

The previous prime is 25065438899. The next prime is 25065438953. The reversal of 25065438902 is 20983456052.

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, 675338 + ... + 711485.

It is an arithmetic number, because the mean of its divisors is an integer number (2687664912).

Almost surely, 2^25065438902 is an apocalyptic number.

25065438902 is a deficient number, since it is larger than the sum of its proper divisors (17937199690).

25065438902 is a wasteful number, since it uses less digits than its factorization.

25065438902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388123.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 25065438902 in words is "twenty-five billion, sixty-five million, four hundred thirty-eight thousand, nine hundred two".