15504013132 has 12 divisors (see below), whose sum is σ = 27304839520. Its totient is φ = 7702630416.

The previous prime is 15504013103. The next prime is 15504013159. The reversal of 15504013132 is 23131040551.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15504013097 and 15504013106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12343332 + ... + 12344587.

Almost surely, 2^15504013132 is an apocalyptic number.

It is an amenable number.

15504013132 is a deficient number, since it is larger than the sum of its proper divisors (11800826388).

15504013132 is a wasteful number, since it uses less digits than its factorization.

15504013132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24688080 (or 24688078 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 15504013132 its reverse (23131040551), we get a palindrome (38635053683).

The spelling of 15504013132 in words is "fifteen billion, five hundred four million, thirteen thousand, one hundred thirty-two".