2516640515 has 16 divisors (see below), whose sum is σ = 3064423968. Its totient is φ = 1983883776.

The previous prime is 2516640491. The next prime is 2516640517. The reversal of 2516640515 is 5150466152.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2516640515 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2516640517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84872 + ... + 110618.

It is an arithmetic number, because the mean of its divisors is an integer number (191526498).

Almost surely, 2^2516640515 is an apocalyptic number.

2516640515 is a deficient number, since it is larger than the sum of its proper divisors (547783453).

2516640515 is a wasteful number, since it uses less digits than its factorization.

2516640515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26038.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 2516640515 is about 50166.1291610186. The cubic root of 2516640515 is about 1360.2134387834.

The spelling of 2516640515 in words is "two billion, five hundred sixteen million, six hundred forty thousand, five hundred fifteen".