225501956 has 12 divisors (see below), whose sum is σ = 415398480. Its totient is φ = 106816680.

The previous prime is 225501943. The next prime is 225501977. The reversal of 225501956 is 659105522.

It is a super-2 number, since 2×225501956² = 101702264319651872, which contains 22 as substring.

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, 1483490 + ... + 1483641.

It is an arithmetic number, because the mean of its divisors is an integer number (34616540).

Almost surely, 2^225501956 is an apocalyptic number.

It is an amenable number.

225501956 is a deficient number, since it is larger than the sum of its proper divisors (189896524).

225501956 is a wasteful number, since it uses less digits than its factorization.

225501956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967154 (or 2967152 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 225501956 is about 15016.7225452160. The cubic root of 225501956 is about 608.6721595970.

The spelling of 225501956 in words is "two hundred twenty-five million, five hundred one thousand, nine hundred fifty-six".