2515981513 has 8 divisors (see below), whose sum is σ = 2539090080. Its totient is φ = 2492978880.

The previous prime is 2515981511. The next prime is 2515981519. The reversal of 2515981513 is 3151895152.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2515981513 - 2¹ = 2515981511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2515981511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21633 + ... + 74161.

It is an arithmetic number, because the mean of its divisors is an integer number (317386260).

Almost surely, 2^2515981513 is an apocalyptic number.

It is an amenable number.

2515981513 is a deficient number, since it is larger than the sum of its proper divisors (23108567).

2515981513 is a wasteful number, since it uses less digits than its factorization.

2515981513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52967.

The product of its digits is 54000, while the sum is 40.

The square root of 2515981513 is about 50159.5605343588. The cubic root of 2515981513 is about 1360.0947009099.

The spelling of 2515981513 in words is "two billion, five hundred fifteen million, nine hundred eighty-one thousand, five hundred thirteen".