225449572 has 6 divisors (see below), whose sum is σ = 394536758. Its totient is φ = 112724784.

The previous prime is 225449537. The next prime is 225449599. The reversal of 225449572 is 275944522.

It can be written as a sum of positive squares in only one way, i.e., 187306596 + 38142976 = 13686^2 + 6176^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28181193 + ... + 28181200.

Almost surely, 2^225449572 is an apocalyptic number.

It is an amenable number.

225449572 is a deficient number, since it is larger than the sum of its proper divisors (169087186).

225449572 is a wasteful number, since it uses less digits than its factorization.

225449572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56362397 (or 56362395 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 225449572 is about 15014.9782550625. The cubic root of 225449572 is about 608.6250245267.

The spelling of 225449572 in words is "two hundred twenty-five million, four hundred forty-nine thousand, five hundred seventy-two".