225403594 has 16 divisors (see below), whose sum is σ = 370985832. Its totient is φ = 102068928.

The previous prime is 225403583. The next prime is 225403597. The reversal of 225403594 is 495304522.

It can be written as a sum of positive squares in 4 ways, for example, as 129618225 + 95785369 = 11385^2 + 9787^2 .

It is not an unprimeable number, because it can be changed into a prime (225403597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80409 + ... + 83164.

Almost surely, 2^225403594 is an apocalyptic number.

225403594 is a deficient number, since it is larger than the sum of its proper divisors (145582238).

225403594 is a wasteful number, since it uses less digits than its factorization.

225403594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163641.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 225403594 is about 15013.4471058448. The cubic root of 225403594 is about 608.5836475517.

The spelling of 225403594 in words is "two hundred twenty-five million, four hundred three thousand, five hundred ninety-four".