225057724544 has 32 divisors (see below), whose sum is σ = 454499083740. Its totient is φ = 110987366400.

The previous prime is 225057724517. The next prime is 225057724547. The reversal of 225057724544 is 445427750522.

It can be written as a sum of positive squares in 2 ways, for example, as 215704513600 + 9353210944 = 464440^2 + 96712^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (225057724547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12033557 + ... + 12052244.

Almost surely, 2^225057724544 is an apocalyptic number.

It is an amenable number.

225057724544 is an abundant number, since it is smaller than the sum of its proper divisors (229441359196).

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

225057724544 is an equidigital number, since it uses as much as digits as its factorization.

225057724544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24085888 (or 24085876 counting only the distinct ones).

The product of its (nonzero) digits is 3136000, while the sum is 47.

The spelling of 225057724544 in words is "two hundred twenty-five billion, fifty-seven million, seven hundred twenty-four thousand, five hundred forty-four".