225171530524 has 24 divisors (see below), whose sum is σ = 397522201328. Its totient is φ = 111597972480.

The previous prime is 225171530513. The next prime is 225171530537. The reversal of 225171530524 is 425035171522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312642 + ... + 740329.

Almost surely, 2^225171530524 is an apocalyptic number.

It is an amenable number.

225171530524 is a deficient number, since it is larger than the sum of its proper divisors (172350670804).

225171530524 is a wasteful number, since it uses less digits than its factorization.

225171530524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053445 (or 1053443 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 225171530524 in words is "two hundred twenty-five billion, one hundred seventy-one million, five hundred thirty thousand, five hundred twenty-four".