13535512500 has 72 divisors (see below), whose sum is σ = 39476160864. Its totient is φ = 3609460000.

The previous prime is 13535512499. The next prime is 13535512511. The reversal of 13535512500 is 521553531.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142974 + ... + 217973.

It is an arithmetic number, because the mean of its divisors is an integer number (548280012).

Almost surely, 2^13535512500 is an apocalyptic number.

13535512500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13535512500 is an abundant number, since it is smaller than the sum of its proper divisors (25940648364).

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

13535512500 is an equidigital number, since it uses as much as digits as its factorization.

13535512500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360979 (or 360957 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 30.

The spelling of 13535512500 in words is "thirteen billion, five hundred thirty-five million, five hundred twelve thousand, five hundred".