225055020 has 24 divisors (see below), whose sum is σ = 630154224. Its totient is φ = 60014656.

The previous prime is 225055007. The next prime is 225055031. The reversal of 225055020 is 20550522.

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, 1875399 + ... + 1875518.

It is an arithmetic number, because the mean of its divisors is an integer number (26256426).

Almost surely, 2^225055020 is an apocalyptic number.

225055020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225055020 is an abundant number, since it is smaller than the sum of its proper divisors (405099204).

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

225055020 is a wasteful number, since it uses less digits than its factorization.

225055020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750929 (or 3750927 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 225055020 is about 15001.8338878952. The cubic root of 225055020 is about 608.2697722211.

The spelling of 225055020 in words is "two hundred twenty-five million, fifty-five thousand, twenty".