2516915 has 4 divisors (see below), whose sum is σ = 3020304. Its totient is φ = 2013528.

The previous prime is 2516893. The next prime is 2516929. The reversal of 2516915 is 5196152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2516915 - 2⁸ = 2516659 is a prime.

It is a super-2 number, since 2×2516915² = 12669722234450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251687 + ... + 251696.

It is an arithmetic number, because the mean of its divisors is an integer number (755076).

2^2516915 is an apocalyptic number.

2516915 is a deficient number, since it is larger than the sum of its proper divisors (503389).

2516915 is an equidigital number, since it uses as much as digits as its factorization.

2516915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503388.

The product of its digits is 2700, while the sum is 29.

The square root of 2516915 is about 1586.4788054052. The cubic root of 2516915 is about 136.0262888915.

The spelling of 2516915 in words is "two million, five hundred sixteen thousand, nine hundred fifteen".