15021554052 has 48 divisors (see below), whose sum is σ = 36938280960. Its totient is φ = 4738089888.

The previous prime is 15021554011. The next prime is 15021554083. The reversal of 15021554052 is 25045512051.

It is a super-2 number, since 2×15021554052² (a number of 21 digits) contains 22 as substring.

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, 158593 + ... + 234935.

It is an arithmetic number, because the mean of its divisors is an integer number (769547520).

Almost surely, 2^15021554052 is an apocalyptic number.

15021554052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15021554052 is an abundant number, since it is smaller than the sum of its proper divisors (21916726908).

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

15021554052 is a wasteful number, since it uses less digits than its factorization.

15021554052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77232 (or 77230 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The spelling of 15021554052 in words is "fifteen billion, twenty-one million, five hundred fifty-four thousand, fifty-two".