225570100 has 36 divisors (see below), whose sum is σ = 559415584. Its totient is φ = 77338080.

The previous prime is 225570041. The next prime is 225570133. The reversal of 225570100 is 1075522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160422 + ... + 161821.

Almost surely, 2^225570100 is an apocalyptic number.

225570100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225570100 is an abundant number, since it is smaller than the sum of its proper divisors (333845484).

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

225570100 is a wasteful number, since it uses less digits than its factorization.

225570100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322264 (or 322257 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 225570100 is about 15018.9913110035. The cubic root of 225570100 is about 608.7334645765.

The spelling of 225570100 in words is "two hundred twenty-five million, five hundred seventy thousand, one hundred".