13531132500 has 120 divisors (see below), whose sum is σ = 40371651936. Its totient is φ = 3524304000.

The previous prime is 13531132493. The next prime is 13531132513. The reversal of 13531132500 is 523113531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 301522 + ... + 343478.

Almost surely, 2^13531132500 is an apocalyptic number.

13531132500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13531132500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20185825968).

13531132500 is an abundant number, since it is smaller than the sum of its proper divisors (26840519436).

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

13531132500 is a wasteful number, since it uses less digits than its factorization.

13531132500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42027 (or 42010 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The spelling of 13531132500 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-two thousand, five hundred".