13533412500 has 144 divisors (see below), whose sum is σ = 43856568000. Its totient is φ = 3608820000.

The previous prime is 13533412493. The next prime is 13533412517. The reversal of 13533412500 is 521433531.

13533412500 is a `hidden beast` number, since 1 + 3 + 533 + 4 + 125 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 317451 + ... + 357549.

It is an arithmetic number, because the mean of its divisors is an integer number (304559500).

Almost surely, 2^13533412500 is an apocalyptic number.

13533412500 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 13533412500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21928284000).

13533412500 is an abundant number, since it is smaller than the sum of its proper divisors (30323155500).

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

13533412500 is an equidigital number, since it uses as much as digits as its factorization.

13533412500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40137 (or 40109 counting only the distinct ones).

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

The spelling of 13533412500 in words is "thirteen billion, five hundred thirty-three million, four hundred twelve thousand, five hundred".