225755664 has 40 divisors (see below), whose sum is σ = 595616640. Its totient is φ = 73650048.

The previous prime is 225755659. The next prime is 225755729. The reversal of 225755664 is 466557522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47779 + ... + 52290.

It is an arithmetic number, because the mean of its divisors is an integer number (14890416).

Almost surely, 2^225755664 is an apocalyptic number.

225755664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

225755664 is an abundant number, since it is smaller than the sum of its proper divisors (369860976).

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

225755664 is a wasteful number, since it uses less digits than its factorization.

225755664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100127 (or 100121 counting only the distinct ones).

The product of its digits is 504000, while the sum is 42.

The square root of 225755664 is about 15025.1676862523. The cubic root of 225755664 is about 608.9003425681.

The spelling of 225755664 in words is "two hundred twenty-five million, seven hundred fifty-five thousand, six hundred sixty-four".