225255870 has 64 divisors (see below), whose sum is σ = 686499840. Its totient is φ = 51486624.

The previous prime is 225255869. The next prime is 225255893. The reversal of 225255870 is 78552522.

225255870 is a `hidden beast` number, since 22 + 52 + 5 + 587 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57702 + ... + 61481.

It is an arithmetic number, because the mean of its divisors is an integer number (10726560).

Almost surely, 2^225255870 is an apocalyptic number.

225255870 is an abundant number, since it is smaller than the sum of its proper divisors (461243970).

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

225255870 is a wasteful number, since it uses less digits than its factorization.

225255870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119206 (or 119200 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 225255870 is about 15008.5265765831. The cubic root of 225255870 is about 608.4506682201.

The spelling of 225255870 in words is "two hundred twenty-five million, two hundred fifty-five thousand, eight hundred seventy".