225593136 has 60 divisors (see below), whose sum is σ = 646047688. Its totient is φ = 73446912.

The previous prime is 225593113. The next prime is 225593149. The reversal of 225593136 is 631395522.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 225593136.

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 11 ways as a sum of consecutive naturals, for example, 12025 + ... + 24408.

Almost surely, 2^225593136 is an apocalyptic number.

It is an amenable number.

225593136 is an abundant number, since it is smaller than the sum of its proper divisors (420454552).

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

225593136 is a wasteful number, since it uses less digits than its factorization.

225593136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36490 (or 36481 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 225593136 is about 15019.7581871347. The cubic root of 225593136 is about 608.7541858612.

The spelling of 225593136 in words is "two hundred twenty-five million, five hundred ninety-three thousand, one hundred thirty-six".