225620856 has 64 divisors (see below), whose sum is σ = 627955200. Its totient is φ = 75059424.

The previous prime is 225620849. The next prime is 225620887. The reversal of 225620856 is 658026522.

225620856 is a `hidden beast` number, since 2 + 25 + 620 + 8 + 5 + 6 = 666.

225620856 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 225620856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204001 + ... + 205103.

It is an arithmetic number, because the mean of its divisors is an integer number (9811800).

Almost surely, 2^225620856 is an apocalyptic number.

It is an amenable number.

225620856 is an abundant number, since it is smaller than the sum of its proper divisors (402334344).

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

225620856 is a wasteful number, since it uses less digits than its factorization.

225620856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065 (or 2055 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 225620856 is about 15020.6809432862. The cubic root of 225620856 is about 608.7791186158.

The spelling of 225620856 in words is "two hundred twenty-five million, six hundred twenty thousand, eight hundred fifty-six".