225739688 has 16 divisors (see below), whose sum is σ = 423931860. Its totient is φ = 112691200.

The previous prime is 225739681. The next prime is 225739699. The reversal of 225739688 is 886937522.

It can be written as a sum of positive squares in 2 ways, for example, as 217798564 + 7941124 = 14758^2 + 2818^2 .

It is not an unprimeable number, because it can be changed into a prime (225739681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16883 + ... + 27138.

Almost surely, 2^225739688 is an apocalyptic number.

It is an amenable number.

225739688 is a deficient number, since it is larger than the sum of its proper divisors (198192172).

225739688 is a wasteful number, since it uses less digits than its factorization.

225739688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44668 (or 44664 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The square root of 225739688 is about 15024.6360355251. The cubic root of 225739688 is about 608.8859789250.

The spelling of 225739688 in words is "two hundred twenty-five million, seven hundred thirty-nine thousand, six hundred eighty-eight".