25438657010 has 32 divisors (see below), whose sum is σ = 49440706560. Its totient is φ = 9368192448.

The previous prime is 25438657007. The next prime is 25438657063. The reversal of 25438657010 is 1075683452.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205670 + ... + 305249.

It is an arithmetic number, because the mean of its divisors is an integer number (1545022080).

Almost surely, 2^25438657010 is an apocalyptic number.

25438657010 is a deficient number, since it is larger than the sum of its proper divisors (24002049550).

25438657010 is a wasteful number, since it uses less digits than its factorization.

25438657010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511322.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 25438657010 in words is "twenty-five billion, four hundred thirty-eight million, six hundred fifty-seven thousand, ten".