15222504552 has 64 divisors (see below), whose sum is σ = 39731765760. Its totient is φ = 4851000000.

The previous prime is 15222504541. The next prime is 15222504581. The reversal of 15222504552 is 25540522251.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1236427 + ... + 1248677.

It is an arithmetic number, because the mean of its divisors is an integer number (620808840).

Almost surely, 2^15222504552 is an apocalyptic number.

15222504552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15222504552 is an abundant number, since it is smaller than the sum of its proper divisors (24509261208).

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

15222504552 is a wasteful number, since it uses less digits than its factorization.

15222504552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14534 (or 14530 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

The spelling of 15222504552 in words is "fifteen billion, two hundred twenty-two million, five hundred four thousand, five hundred fifty-two".