2516263615 has 4 divisors (see below), whose sum is σ = 3019516344. Its totient is φ = 2013010888.

The previous prime is 2516263609. The next prime is 2516263621. The reversal of 2516263615 is 5163626152.

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

It is an interprime number because it is at equal distance from previous prime (2516263609) and next prime (2516263621).

It is a cyclic number.

It is not a de Polignac number, because 2516263615 - 2⁹ = 2516263103 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 251626357 + ... + 251626366.

It is an arithmetic number, because the mean of its divisors is an integer number (754879086).

Almost surely, 2^2516263615 is an apocalyptic number.

2516263615 is a deficient number, since it is larger than the sum of its proper divisors (503252729).

2516263615 is an equidigital number, since it uses as much as digits as its factorization.

2516263615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503252728.

The product of its digits is 64800, while the sum is 37.

The square root of 2516263615 is about 50162.3725017069. The cubic root of 2516263615 is about 1360.1455321122.

Adding to 2516263615 its reverse (5163626152), we get a palindrome (7679889767).

The spelling of 2516263615 in words is "two billion, five hundred sixteen million, two hundred sixty-three thousand, six hundred fifteen".