13520551500 has 144 divisors (see below), whose sum is σ = 42721442400. Its totient is φ = 3599683200.

The previous prime is 13520551481. The next prime is 13520551529. The reversal of 13520551500 is 515502531.

13520551500 is a `hidden beast` number, since 13 + 52 + 0 + 551 + 50 + 0 = 666.

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, 3296451 + ... + 3300549.

Almost surely, 2^13520551500 is an apocalyptic number.

13520551500 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 13520551500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21360721200).

13520551500 is an abundant number, since it is smaller than the sum of its proper divisors (29200890900).

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

13520551500 is a wasteful number, since it uses less digits than its factorization.

13520551500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4857 (or 4842 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The spelling of 13520551500 in words is "thirteen billion, five hundred twenty million, five hundred fifty-one thousand, five hundred".