225042688890 has 24 divisors (see below), whose sum is σ = 585110991348. Its totient is φ = 60011383680.

The previous prime is 225042688889. The next prime is 225042688891. The reversal of 225042688890 is 98886240522.

It is a happy number.

225042688890 is a `hidden beast` number, since 2 + 2 + 50 + 426 + 8 + 88 + 90 = 666.

It is an interprime number because it is at equal distance from previous prime (225042688889) and next prime (225042688891).

It can be written as a sum of positive squares in 2 ways, for example, as 212643643689 + 12399045201 = 461133^2 + 111351^2 .

It is not an unprimeable number, because it can be changed into a prime (225042688891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1250237071 + ... + 1250237250.

Almost surely, 2^225042688890 is an apocalyptic number.

225042688890 is an abundant number, since it is smaller than the sum of its proper divisors (360068302458).

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

225042688890 is a wasteful number, since it uses less digits than its factorization.

225042688890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500474334 (or 2500474331 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 225042688890 in words is "two hundred twenty-five billion, forty-two million, six hundred eighty-eight thousand, eight hundred ninety".