225512504523 has 24 divisors (see below), whose sum is σ = 340750668960. Its totient is φ = 143446406400.

The previous prime is 225512504519. The next prime is 225512504537. The reversal of 225512504523 is 325405215522.

225512504523 is a `hidden beast` number, since 2 + 2 + 5 + 5 + 125 + 0 + 4 + 523 = 666.

It is not a de Polignac number, because 225512504523 - 2² = 225512504519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225512504513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1275388 + ... + 1441401.

It is an arithmetic number, because the mean of its divisors is an integer number (14197944540).

Almost surely, 2^225512504523 is an apocalyptic number.

225512504523 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

225512504523 is a deficient number, since it is larger than the sum of its proper divisors (115238164437).

225512504523 is a wasteful number, since it uses less digits than its factorization.

225512504523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717219 (or 2717216 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 225512504523 in words is "two hundred twenty-five billion, five hundred twelve million, five hundred four thousand, five hundred twenty-three".