194528425025 has 24 divisors (see below), whose sum is σ = 272217844800. Its totient is φ = 136596756800.

The previous prime is 194528425019. The next prime is 194528425051. The reversal of 194528425025 is 520524825491.

It is not a de Polignac number, because 194528425025 - 2²² = 194524230721 is a prime.

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, 12188165 + ... + 12204114.

It is an arithmetic number, because the mean of its divisors is an integer number (11342410200).

Almost surely, 2^194528425025 is an apocalyptic number.

It is an amenable number.

194528425025 is a deficient number, since it is larger than the sum of its proper divisors (77689419775).

194528425025 is a wasteful number, since it uses less digits than its factorization.

194528425025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24392329 (or 24392324 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 47.

The spelling of 194528425025 in words is "one hundred ninety-four billion, five hundred twenty-eight million, four hundred twenty-five thousand, twenty-five".