225635624 has 8 divisors (see below), whose sum is σ = 423066810. Its totient is φ = 112817808.

The previous prime is 225635623. The next prime is 225635633. The reversal of 225635624 is 426536522.

It can be written as a sum of positive squares in only one way, i.e., 160833124 + 64802500 = 12682^2 + 8050^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×225635624² = 101822869635738752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225635623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14102219 + ... + 14102234.

Almost surely, 2^225635624 is an apocalyptic number.

It is an amenable number.

225635624 is a deficient number, since it is larger than the sum of its proper divisors (197431186).

225635624 is a wasteful number, since it uses less digits than its factorization.

225635624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28204459 (or 28204455 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The square root of 225635624 is about 15021.1725241407. The cubic root of 225635624 is about 608.7924008599.

The spelling of 225635624 in words is "two hundred twenty-five million, six hundred thirty-five thousand, six hundred twenty-four".