225640712 has 32 divisors (see below), whose sum is σ = 472802400. Its totient is φ = 100060800.

The previous prime is 225640703. The next prime is 225640757. The reversal of 225640712 is 217046522.

It is a happy number.

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, 27662 + ... + 34877.

It is an arithmetic number, because the mean of its divisors is an integer number (14775075).

Almost surely, 2^225640712 is an apocalyptic number.

225640712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

225640712 is an abundant number, since it is smaller than the sum of its proper divisors (247161688).

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

225640712 is a wasteful number, since it uses less digits than its factorization.

225640712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62597 (or 62593 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 225640712 is about 15021.3418841327. The cubic root of 225640712 is about 608.7969768401.

The spelling of 225640712 in words is "two hundred twenty-five million, six hundred forty thousand, seven hundred twelve".