225656143552 has 28 divisors (see below), whose sum is σ = 511755898000. Its totient is φ = 96709775616.

The previous prime is 225656143529. The next prime is 225656143591. The reversal of 225656143552 is 255341656522.

It is a tau number, because it is divible by the number of its divisors (28).

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, 251847927 + ... + 251848822.

Almost surely, 2^225656143552 is an apocalyptic number.

It is an amenable number.

225656143552 is an abundant number, since it is smaller than the sum of its proper divisors (286099754448).

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

225656143552 is an equidigital number, since it uses as much as digits as its factorization.

225656143552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503696768 (or 503696758 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 46.

The spelling of 225656143552 in words is "two hundred twenty-five billion, six hundred fifty-six million, one hundred forty-three thousand, five hundred fifty-two".