13531551000 has 192 divisors, whose sum is σ = 46406636640. Its totient is φ = 3280288000.

The previous prime is 13531550993. The next prime is 13531551067. The reversal of 13531551000 is 15513531.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 344362 + ... + 381638.

Almost surely, 2^13531551000 is an apocalyptic number.

13531551000 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 13531551000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23203318320).

13531551000 is an abundant number, since it is smaller than the sum of its proper divisors (32875085640).

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

13531551000 is a wasteful number, since it uses less digits than its factorization.

13531551000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37323 (or 37298 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 24.

The spelling of 13531551000 in words is "thirteen billion, five hundred thirty-one million, five hundred fifty-one thousand".