225315693 has 24 divisors (see below), whose sum is σ = 332429760. Its totient is φ = 147026880.

The previous prime is 225315679. The next prime is 225315757. The reversal of 225315693 is 396513522.

It is not a de Polignac number, because 225315693 - 2⁸ = 225315437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225315193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81138 + ... + 83868.

It is an arithmetic number, because the mean of its divisors is an integer number (13851240).

Almost surely, 2^225315693 is an apocalyptic number.

It is an amenable number.

225315693 is a deficient number, since it is larger than the sum of its proper divisors (107114067).

225315693 is a wasteful number, since it uses less digits than its factorization.

225315693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929 (or 2926 counting only the distinct ones).

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

The square root of 225315693 is about 15010.5194113995. The cubic root of 225315693 is about 608.5045271532.

It can be divided in two parts, 22531 and 5693, that added together give a square (28224 = 168²).

The spelling of 225315693 in words is "two hundred twenty-five million, three hundred fifteen thousand, six hundred ninety-three".