15725585228 has 12 divisors (see below), whose sum is σ = 27520654392. Its totient is φ = 7862541120.

The previous prime is 15725585203. The next prime is 15725585243. The reversal of 15725585228 is 82258552751.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199076 + ... + 266612.

It is an arithmetic number, because the mean of its divisors is an integer number (2293387866).

Almost surely, 2^15725585228 is an apocalyptic number.

It is an amenable number.

15725585228 is a deficient number, since it is larger than the sum of its proper divisors (11795069164).

15725585228 is a wasteful number, since it uses less digits than its factorization.

15725585228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125752 (or 125750 counting only the distinct ones).

The product of its digits is 2240000, while the sum is 50.

The spelling of 15725585228 in words is "fifteen billion, seven hundred twenty-five million, five hundred eighty-five thousand, two hundred twenty-eight".