225645564 has 24 divisors (see below), whose sum is σ = 529239760. Its totient is φ = 74824704.

The previous prime is 225645551. The next prime is 225645611. The reversal of 225645564 is 465546522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46399 + ... + 51030.

Almost surely, 2^225645564 is an apocalyptic number.

It is an amenable number.

225645564 is an abundant number, since it is smaller than the sum of its proper divisors (303594196).

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

225645564 is a wasteful number, since it uses less digits than its factorization.

225645564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97629 (or 97627 counting only the distinct ones).

The product of its digits is 288000, while the sum is 39.

The square root of 225645564 is about 15021.5033868119. The cubic root of 225645564 is about 608.8013405056.

The spelling of 225645564 in words is "two hundred twenty-five million, six hundred forty-five thousand, five hundred sixty-four".