13515315530 has 8 divisors (see below), whose sum is σ = 24327567972. Its totient is φ = 5406126208.

The previous prime is 13515315521. The next prime is 13515315553. The reversal of 13515315530 is 3551351531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12726772969 + 788542561 = 112813^2 + 28081^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675765767 + ... + 675765786.

Almost surely, 2^13515315530 is an apocalyptic number.

13515315530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13515315530 is a deficient number, since it is larger than the sum of its proper divisors (10812252442).

13515315530 is a wasteful number, since it uses less digits than its factorization.

13515315530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351531560.

The product of its (nonzero) digits is 16875, while the sum is 32.

The spelling of 13515315530 in words is "thirteen billion, five hundred fifteen million, three hundred fifteen thousand, five hundred thirty".