15502220552 has 48 divisors (see below), whose sum is σ = 36413194860. Its totient is φ = 6132744576.

The previous prime is 15502220537. The next prime is 15502220611. The reversal of 15502220552 is 25502220551.

It can be written as a sum of positive squares in 2 ways, for example, as 15044003716 + 458216836 = 122654^2 + 21406^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1515923 + ... + 1526114.

Almost surely, 2^15502220552 is an apocalyptic number.

It is an amenable number.

15502220552 is an abundant number, since it is smaller than the sum of its proper divisors (20910974308).

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

15502220552 is a wasteful number, since it uses less digits than its factorization.

15502220552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3042070 (or 3042059 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

Subtracting 15502220552 from its reverse (25502220551), we obtain a palindrome (9999999999).

The spelling of 15502220552 in words is "fifteen billion, five hundred two million, two hundred twenty thousand, five hundred fifty-two".