225312507 has 48 divisors (see below), whose sum is σ = 401157120. Its totient is φ = 118972800.

The previous prime is 225312497. The next prime is 225312553. The reversal of 225312507 is 705213522.

It is not a de Polignac number, because 225312507 - 2⁶ = 225312443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225312007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46782 + ... + 51372.

It is an arithmetic number, because the mean of its divisors is an integer number (8357440).

Almost surely, 2^225312507 is an apocalyptic number.

225312507 is a deficient number, since it is larger than the sum of its proper divisors (175844613).

225312507 is a wasteful number, since it uses less digits than its factorization.

225312507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4664 (or 4661 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 225312507 is about 15010.4132854495. The cubic root of 225312507 is about 608.5016590225.

The spelling of 225312507 in words is "two hundred twenty-five million, three hundred twelve thousand, five hundred seven".