225139288392 has 108 divisors (see below), whose sum is σ = 615020375385. Its totient is φ = 74403584640.

The previous prime is 225139288391. The next prime is 225139288433. The reversal of 225139288392 is 293882931522.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

225139288392 is a `hidden beast` number, since 2 + 2 + 513 + 92 + 8 + 8 + 39 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 217952657316 + 7186631076 = 466854^2 + 84774^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=335514.

It is a super-2 number, since 2×225139288392² (a number of 24 digits) contains 22 as substring.

Its product of digits (3732480) is a multiple of the sum of its prime factors (972).

It is not an unprimeable number, because it can be changed into a prime (225139288391) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 801207292 + ... + 801207572.

Almost surely, 2^225139288392 is an apocalyptic number.

It is an amenable number.

225139288392 is an abundant number, since it is smaller than the sum of its proper divisors (389881086993).

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

225139288392 is an equidigital number, since it uses as much as digits as its factorization.

225139288392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 485 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 225139288392 in words is "two hundred twenty-five billion, one hundred thirty-nine million, two hundred eighty-eight thousand, three hundred ninety-two".