15533633352 has 16 divisors (see below), whose sum is σ = 38834083440. Its totient is φ = 5177877776.

The previous prime is 15533633351. The next prime is 15533633389. The reversal of 15533633352 is 25333633551.

It is a super-2 number, since 2×15533633352² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15533633352.

It is not an unprimeable number, because it can be changed into a prime (15533633351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323617338 + ... + 323617385.

It is an arithmetic number, because the mean of its divisors is an integer number (2427130215).

Almost surely, 2^15533633352 is an apocalyptic number.

15533633352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15533633352 is an abundant number, since it is smaller than the sum of its proper divisors (23300450088).

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

15533633352 is a wasteful number, since it uses less digits than its factorization.

15533633352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647234732 (or 647234728 counting only the distinct ones).

The product of its digits is 364500, while the sum is 39.

The spelling of 15533633352 in words is "fifteen billion, five hundred thirty-three million, six hundred thirty-three thousand, three hundred fifty-two".