225291570 has 64 divisors (see below), whose sum is σ = 637894656. Its totient is φ = 49832640.

The previous prime is 225291533. The next prime is 225291571. The reversal of 225291570 is 75192522.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (225291571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10794 + ... + 23813.

It is an arithmetic number, because the mean of its divisors is an integer number (9967104).

Almost surely, 2^225291570 is an apocalyptic number.

225291570 is an abundant number, since it is smaller than the sum of its proper divisors (412603086).

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

225291570 is a wasteful number, since it uses less digits than its factorization.

225291570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34655.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 225291570 is about 15009.7158534064. The cubic root of 225291570 is about 608.4828102480.

The spelling of 225291570 in words is "two hundred twenty-five million, two hundred ninety-one thousand, five hundred seventy".