225623725 has 12 divisors (see below), whose sum is σ = 280016800. Its totient is φ = 180342000.

The previous prime is 225623719. The next prime is 225623737. The reversal of 225623725 is 527326522.

It is not a de Polignac number, because 225623725 - 2⁵ = 225623693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31750 + ... + 38200.

Almost surely, 2^225623725 is an apocalyptic number.

225623725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225623725 is a deficient number, since it is larger than the sum of its proper divisors (54393075).

225623725 is a wasteful number, since it uses less digits than its factorization.

225623725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7860 (or 7855 counting only the distinct ones).

The product of its digits is 50400, while the sum is 34.

The square root of 225623725 is about 15020.7764446449. The cubic root of 225623725 is about 608.7816990213.

The spelling of 225623725 in words is "two hundred twenty-five million, six hundred twenty-three thousand, seven hundred twenty-five".