225207812 has 24 divisors (see below), whose sum is σ = 419017536. Its totient is φ = 105673568.

The previous prime is 225207803. The next prime is 225207821. The reversal of 225207812 is 218702522.

It is an interprime number because it is at equal distance from previous prime (225207803) and next prime (225207821).

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, 18218 + ... + 27969.

It is an arithmetic number, because the mean of its divisors is an integer number (17459064).

Almost surely, 2^225207812 is an apocalyptic number.

It is an amenable number.

225207812 is a deficient number, since it is larger than the sum of its proper divisors (193809724).

225207812 is a wasteful number, since it uses less digits than its factorization.

225207812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46267 (or 46265 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 225207812 is about 15006.9254679298. The cubic root of 225207812 is about 608.4073944651.

The spelling of 225207812 in words is "two hundred twenty-five million, two hundred seven thousand, eight hundred twelve".