25997396110 has 32 divisors (see below), whose sum is σ = 55805594112. Its totient is φ = 8525853600.

The previous prime is 25997396107. The next prime is 25997396143. The reversal of 25997396110 is 1169379952.

It is a happy number.

It is a congruent number.

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, 8072116 + ... + 8075335.

It is an arithmetic number, because the mean of its divisors is an integer number (1743924816).

Almost surely, 2^25997396110 is an apocalyptic number.

25997396110 is an abundant number, since it is smaller than the sum of its proper divisors (29808198002).

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

25997396110 is a wasteful number, since it uses less digits than its factorization.

25997396110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16147488.

The product of its (nonzero) digits is 918540, while the sum is 52.

The spelling of 25997396110 in words is "twenty-five billion, nine hundred ninety-seven million, three hundred ninety-six thousand, one hundred ten".