225474879 has 32 divisors (see below), whose sum is σ = 352387584. Its totient is φ = 125573760.

The previous prime is 225474877. The next prime is 225474917. The reversal of 225474879 is 978474522.

It is not a de Polignac number, because 225474879 - 2¹ = 225474877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225474877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191964 + ... + 193134.

It is an arithmetic number, because the mean of its divisors is an integer number (11012112).

Almost surely, 2^225474879 is an apocalyptic number.

225474879 is a deficient number, since it is larger than the sum of its proper divisors (126912705).

225474879 is a wasteful number, since it uses less digits than its factorization.

225474879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407.

The product of its digits is 1128960, while the sum is 48.

The square root of 225474879 is about 15015.8209565778. The cubic root of 225474879 is about 608.6477966513.

The spelling of 225474879 in words is "two hundred twenty-five million, four hundred seventy-four thousand, eight hundred seventy-nine".