25897097926 has 32 divisors (see below), whose sum is σ = 46913564160. Its totient is φ = 10473670656.

The previous prime is 25897097911. The next prime is 25897097953. The reversal of 25897097926 is 62979079852.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121050 + ... + 257773.

It is an arithmetic number, because the mean of its divisors is an integer number (1466048880).

Almost surely, 2^25897097926 is an apocalyptic number.

25897097926 is a deficient number, since it is larger than the sum of its proper divisors (21016466234).

25897097926 is a wasteful number, since it uses less digits than its factorization.

25897097926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379108.

The product of its (nonzero) digits is 34292160, while the sum is 64.

The spelling of 25897097926 in words is "twenty-five billion, eight hundred ninety-seven million, ninety-seven thousand, nine hundred twenty-six".