225536644 has 12 divisors (see below), whose sum is σ = 403087104. Its totient is φ = 110368904.

The previous prime is 225536617. The next prime is 225536653. The reversal of 225536644 is 446635522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599644 + ... + 600019.

It is an arithmetic number, because the mean of its divisors is an integer number (33590592).

Almost surely, 2^225536644 is an apocalyptic number.

It is an amenable number.

225536644 is a deficient number, since it is larger than the sum of its proper divisors (177550460).

225536644 is a wasteful number, since it uses less digits than its factorization.

225536644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199714 (or 1199712 counting only the distinct ones).

The product of its digits is 172800, while the sum is 37.

The square root of 225536644 is about 15017.8774798571. The cubic root of 225536644 is about 608.7033678073.

The spelling of 225536644 in words is "two hundred twenty-five million, five hundred thirty-six thousand, six hundred forty-four".