225057745672 has 16 divisors (see below), whose sum is σ = 422039792700. Its totient is φ = 112513800960.

The previous prime is 225057745643. The next prime is 225057745673. The reversal of 225057745672 is 276547750522.

It can be written as a sum of positive squares in 2 ways, for example, as 222929399716 + 2128345956 = 472154^2 + 46134^2 .

It is not an unprimeable number, because it can be changed into a prime (225057745673) 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, 1820397 + ... + 1940092.

Almost surely, 2^225057745672 is an apocalyptic number.

It is an amenable number.

225057745672 is a deficient number, since it is larger than the sum of its proper divisors (196982047028).

225057745672 is a wasteful number, since it uses less digits than its factorization.

225057745672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767976 (or 3767972 counting only the distinct ones).

The product of its (nonzero) digits is 8232000, while the sum is 52.

The spelling of 225057745672 in words is "two hundred twenty-five billion, fifty-seven million, seven hundred forty-five thousand, six hundred seventy-two".