225312308 has 12 divisors (see below), whose sum is σ = 424627140. Its totient is φ = 103990272.

The previous prime is 225312299. The next prime is 225312331. The reversal of 225312308 is 803213522.

It can be written as a sum of positive squares in 2 ways, for example, as 93934864 + 131377444 = 9692^2 + 11462^2 .

It is a super-2 number, since 2×225312308² = 101531272272573728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2166413 + ... + 2166516.

It is an arithmetic number, because the mean of its divisors is an integer number (35385595).

Almost surely, 2^225312308 is an apocalyptic number.

It is an amenable number.

225312308 is a deficient number, since it is larger than the sum of its proper divisors (199314832).

225312308 is a wasteful number, since it uses less digits than its factorization.

225312308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332946 (or 4332944 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 225312308 is about 15010.4066567165. The cubic root of 225312308 is about 608.5014798760.

The spelling of 225312308 in words is "two hundred twenty-five million, three hundred twelve thousand, three hundred eight".