225215102790 has 96 divisors (see below), whose sum is σ = 615371286816. Its totient is φ = 57075217920.

The previous prime is 225215102731. The next prime is 225215102807. The reversal of 225215102790 is 97201512522.

225215102790 is a `hidden beast` number, since 2 + 2 + 52 + 1 + 510 + 2 + 7 + 90 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 643231 + ... + 929610.

It is an arithmetic number, because the mean of its divisors is an integer number (6410117571).

Almost surely, 2^225215102790 is an apocalyptic number.

225215102790 is an abundant number, since it is smaller than the sum of its proper divisors (390156184026).

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

225215102790 is a wasteful number, since it uses less digits than its factorization.

225215102790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572934 (or 1572931 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 225215102790 in words is "two hundred twenty-five billion, two hundred fifteen million, one hundred two thousand, seven hundred ninety".