225393972 has 24 divisors (see below), whose sum is σ = 527436000. Its totient is φ = 74914656.

The previous prime is 225393919. The next prime is 225393977. The reversal of 225393972 is 279393522.

It is a super-2 number, since 2×225393972² = 101604885227873568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225393977) by changing a digit.

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, 22722 + ... + 31097.

It is an arithmetic number, because the mean of its divisors is an integer number (21976500).

Almost surely, 2^225393972 is an apocalyptic number.

It is an amenable number.

225393972 is an abundant number, since it is smaller than the sum of its proper divisors (302042028).

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

225393972 is a wasteful number, since it uses less digits than its factorization.

225393972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54175 (or 54173 counting only the distinct ones).

The product of its digits is 204120, while the sum is 42.

The square root of 225393972 is about 15013.1266563631. The cubic root of 225393972 is about 608.5749877147.

The spelling of 225393972 in words is "two hundred twenty-five million, three hundred ninety-three thousand, nine hundred seventy-two".