15532203132 has 36 divisors (see below), whose sum is σ = 39327340416. Its totient is φ = 5168779200.

The previous prime is 15532203131. The next prime is 15532203149. The reversal of 15532203132 is 23130223551.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 15532203096 and 15532203105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15532203131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 337308 + ... + 380579.

Almost surely, 2^15532203132 is an apocalyptic number.

15532203132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15532203132 is an abundant number, since it is smaller than the sum of its proper divisors (23795137284).

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

15532203132 is a wasteful number, since it uses less digits than its factorization.

15532203132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718498 (or 718493 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 15532203132 its reverse (23130223551), we get a palindrome (38662426683).

The spelling of 15532203132 in words is "fifteen billion, five hundred thirty-two million, two hundred three thousand, one hundred thirty-two".