225697508 has 12 divisors (see below), whose sum is σ = 418204332. Its totient is φ = 106210560.

The previous prime is 225697441. The next prime is 225697513. The reversal of 225697508 is 805796522.

It can be written as a sum of positive squares in 2 ways, for example, as 112317604 + 113379904 = 10598^2 + 10648^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1659473 + ... + 1659608.

It is an arithmetic number, because the mean of its divisors is an integer number (34850361).

Almost surely, 2^225697508 is an apocalyptic number.

It is an amenable number.

225697508 is a deficient number, since it is larger than the sum of its proper divisors (192506824).

225697508 is a wasteful number, since it uses less digits than its factorization.

225697508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319102 (or 3319100 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 225697508 is about 15023.2322753794. The cubic root of 225697508 is about 608.8480526294.

The spelling of 225697508 in words is "two hundred twenty-five million, six hundred ninety-seven thousand, five hundred eight".