25935221934 has 48 divisors (see below), whose sum is σ = 56816781840. Its totient is φ = 8549245440.

The previous prime is 25935221929. The next prime is 25935221969. The reversal of 25935221934 is 43912253952.

25935221934 is a `hidden beast` number, since 2 + 5 + 93 + 522 + 1 + 9 + 34 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 25935221934.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2542324 + ... + 2552504.

It is an arithmetic number, because the mean of its divisors is an integer number (1183682955).

Almost surely, 2^25935221934 is an apocalyptic number.

25935221934 is an abundant number, since it is smaller than the sum of its proper divisors (30881559906).

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

25935221934 is a wasteful number, since it uses less digits than its factorization.

25935221934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11745 (or 11742 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The spelling of 25935221934 in words is "twenty-five billion, nine hundred thirty-five million, two hundred twenty-one thousand, nine hundred thirty-four".