13215255400 has 48 divisors (see below), whose sum is σ = 30757183200. Its totient is φ = 5280646080.

The previous prime is 13215255367. The next prime is 13215255437. The reversal of 13215255400 is 455251231.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162991 + ... + 230209.

It is an arithmetic number, because the mean of its divisors is an integer number (640774650).

Almost surely, 2^13215255400 is an apocalyptic number.

13215255400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13215255400 is an abundant number, since it is smaller than the sum of its proper divisors (17541927800).

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

13215255400 is a wasteful number, since it uses less digits than its factorization.

13215255400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68218 (or 68209 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 13215255400 in words is "thirteen billion, two hundred fifteen million, two hundred fifty-five thousand, four hundred".