225620256 has 24 divisors (see below), whose sum is σ = 592253424. Its totient is φ = 75206720.

The previous prime is 225620249. The next prime is 225620267. The reversal of 225620256 is 652026522.

225620256 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175010 + ... + 1175201.

It is an arithmetic number, because the mean of its divisors is an integer number (24677226).

Almost surely, 2^225620256 is an apocalyptic number.

It is an amenable number.

225620256 is an abundant number, since it is smaller than the sum of its proper divisors (366633168).

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

225620256 is a wasteful number, since it uses less digits than its factorization.

225620256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350224 (or 2350216 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 225620256 is about 15020.6609708095. The cubic root of 225620256 is about 608.7785789674.

Adding to 225620256 its reverse (652026522), we get a palindrome (877646778).

The spelling of 225620256 in words is "two hundred twenty-five million, six hundred twenty thousand, two hundred fifty-six".