225723524 has 36 divisors (see below), whose sum is σ = 439664652. Its totient is φ = 100797120.

The previous prime is 225723523. The next prime is 225723551. The reversal of 225723524 is 425327522.

It can be written as a sum of positive squares in 2 ways, for example, as 11628100 + 214095424 = 3410^2 + 14632^2 .

It is a super-2 number, since 2×225723524² = 101902218573957152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225723521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47714 + ... + 52230.

It is an arithmetic number, because the mean of its divisors is an integer number (12212907).

Almost surely, 2^225723524 is an apocalyptic number.

It is an amenable number.

225723524 is a deficient number, since it is larger than the sum of its proper divisors (213941128).

225723524 is a wasteful number, since it uses less digits than its factorization.

225723524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4596 (or 4563 counting only the distinct ones).

The product of its digits is 33600, while the sum is 32.

The square root of 225723524 is about 15024.0981093708. The cubic root of 225723524 is about 608.8714455658.

The spelling of 225723524 in words is "two hundred twenty-five million, seven hundred twenty-three thousand, five hundred twenty-four".