225815464 has 32 divisors (see below), whose sum is σ = 484920000. Its totient is φ = 96572160.

The previous prime is 225815461. The next prime is 225815483. The reversal of 225815464 is 464518522.

It is not an unprimeable number, because it can be changed into a prime (225815461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23904 + ... + 31984.

It is an arithmetic number, because the mean of its divisors is an integer number (15153750).

Almost surely, 2^225815464 is an apocalyptic number.

It is an amenable number.

225815464 is an abundant number, since it is smaller than the sum of its proper divisors (259104536).

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

225815464 is a wasteful number, since it uses less digits than its factorization.

225815464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8593 (or 8589 counting only the distinct ones).

The product of its digits is 76800, while the sum is 37.

The square root of 225815464 is about 15027.1575489179. The cubic root of 225815464 is about 608.9541013166.

The spelling of 225815464 in words is "two hundred twenty-five million, eight hundred fifteen thousand, four hundred sixty-four".