225703656 has 24 divisors (see below), whose sum is σ = 611280930. Its totient is φ = 75234528.

The previous prime is 225703651. The next prime is 225703661. The reversal of 225703656 is 656307522.

It is a happy number.

225703656 is a `hidden beast` number, since 2 + 2 + 570 + 36 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (225703651) and next prime (225703661).

It can be written as a sum of positive squares in only one way, i.e., 224100900 + 1602756 = 14970^2 + 1266^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 225703656.

It is not an unprimeable number, because it can be changed into a prime (225703651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1567315 + ... + 1567458.

Almost surely, 2^225703656 is an apocalyptic number.

It is an amenable number.

225703656 is an abundant number, since it is smaller than the sum of its proper divisors (385577274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225703656 is a wasteful number, since it uses less digits than its factorization.

225703656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134785 (or 3134778 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 225703656 is about 15023.4368904056. The cubic root of 225703656 is about 608.8535809194.

The spelling of 225703656 in words is "two hundred twenty-five million, seven hundred three thousand, six hundred fifty-six".