15172224550 has 48 divisors (see below), whose sum is σ = 32322118752. Its totient is φ = 5190566400.

The previous prime is 15172224539. The next prime is 15172224577. The reversal of 15172224550 is 5542227151.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114334 + ... + 208366.

It is an arithmetic number, because the mean of its divisors is an integer number (673377474).

Almost surely, 2^15172224550 is an apocalyptic number.

15172224550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15172224550 is an abundant number, since it is smaller than the sum of its proper divisors (17149894202).

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

15172224550 is a wasteful number, since it uses less digits than its factorization.

15172224550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94513 (or 94508 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 34.

The spelling of 15172224550 in words is "fifteen billion, one hundred seventy-two million, two hundred twenty-four thousand, five hundred fifty".