225738564 has 24 divisors (see below), whose sum is σ = 531558720. Its totient is φ = 74555424.

The previous prime is 225738547. The next prime is 225738571. The reversal of 225738564 is 465837522.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84984 + ... + 87599.

It is an arithmetic number, because the mean of its divisors is an integer number (22148280).

Almost surely, 2^225738564 is an apocalyptic number.

It is an amenable number.

225738564 is an abundant number, since it is smaller than the sum of its proper divisors (305820156).

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

225738564 is a wasteful number, since it uses less digits than its factorization.

225738564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172699 (or 172697 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The square root of 225738564 is about 15024.5986302463. The cubic root of 225738564 is about 608.8849683377.

The spelling of 225738564 in words is "two hundred twenty-five million, seven hundred thirty-eight thousand, five hundred sixty-four".