15535231032 has 64 divisors (see below), whose sum is σ = 39398268960. Its totient is φ = 5103820800.

The previous prime is 15535231027. The next prime is 15535231087. The reversal of 15535231032 is 23013253551.

It is a congruent number.

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, 3643782 + ... + 3648042.

Almost surely, 2^15535231032 is an apocalyptic number.

15535231032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15535231032 is an abundant number, since it is smaller than the sum of its proper divisors (23863037928).

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

15535231032 is a wasteful number, since it uses less digits than its factorization.

15535231032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6424 (or 6420 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 15535231032 its reverse (23013253551), we get a palindrome (38548484583).

The spelling of 15535231032 in words is "fifteen billion, five hundred thirty-five million, two hundred thirty-one thousand, thirty-two".