225986579 has 32 divisors (see below), whose sum is σ = 288960000. Its totient is φ = 175567392.

The previous prime is 225986567. The next prime is 225986587. The reversal of 225986579 is 975689522.

It is not a de Polignac number, because 225986579 - 2¹² = 225982483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225986579.

It is not an unprimeable number, because it can be changed into a prime (225986549) 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, 262652 + ... + 263510.

It is an arithmetic number, because the mean of its divisors is an integer number (9030000).

Almost surely, 2^225986579 is an apocalyptic number.

225986579 is a deficient number, since it is larger than the sum of its proper divisors (62973421).

225986579 is an equidigital number, since it uses as much as digits as its factorization.

225986579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 938 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 53.

The square root of 225986579 is about 15032.8499959256. The cubic root of 225986579 is about 609.1078771332.

The spelling of 225986579 in words is "two hundred twenty-five million, nine hundred eighty-six thousand, five hundred seventy-nine".