225999579 has 32 divisors (see below), whose sum is σ = 341397504. Its totient is φ = 132013440.

The previous prime is 225999577. The next prime is 225999583. The reversal of 225999579 is 975999522.

It is not a de Polignac number, because 225999579 - 2¹ = 225999577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225999577) 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, 62314 + ... + 65840.

It is an arithmetic number, because the mean of its divisors is an integer number (10668672).

Almost surely, 2^225999579 is an apocalyptic number.

225999579 is a deficient number, since it is larger than the sum of its proper divisors (115397925).

225999579 is a wasteful number, since it uses less digits than its factorization.

225999579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3627.

The product of its digits is 4592700, while the sum is 57.

The square root of 225999579 is about 15033.2823761147. The cubic root of 225999579 is about 609.1195566624.

Subtracting from 225999579 its sum of digits (57), we obtain a palindrome (225999522).

The spelling of 225999579 in words is "two hundred twenty-five million, nine hundred ninety-nine thousand, five hundred seventy-nine".