15213332532 has 12 divisors (see below), whose sum is σ = 35497775936. Its totient is φ = 5071110840.

The previous prime is 15213332527. The next prime is 15213332539. The reversal of 15213332532 is 23523331251.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 15213332532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15213332539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633888844 + ... + 633888867.

Almost surely, 2^15213332532 is an apocalyptic number.

15213332532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15213332532 is an abundant number, since it is smaller than the sum of its proper divisors (20284443404).

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

15213332532 is a wasteful number, since it uses less digits than its factorization.

15213332532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267777718 (or 1267777716 counting only the distinct ones).

The product of its digits is 16200, while the sum is 30.

Adding to 15213332532 its reverse (23523331251), we get a palindrome (38736663783).

The spelling of 15213332532 in words is "fifteen billion, two hundred thirteen million, three hundred thirty-two thousand, five hundred thirty-two".