2516263601 has 4 divisors (see below), whose sum is σ = 2541177204. Its totient is φ = 2491350000.

The previous prime is 2516263597. The next prime is 2516263609. The reversal of 2516263601 is 1063626152.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2347887025 + 168376576 = 48455^2 + 12976^2 .

It is a cyclic number.

It is not a de Polignac number, because 2516263601 - 2² = 2516263597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2516263609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12456650 + ... + 12456851.

It is an arithmetic number, because the mean of its divisors is an integer number (635294301).

Almost surely, 2^2516263601 is an apocalyptic number.

It is an amenable number.

2516263601 is a deficient number, since it is larger than the sum of its proper divisors (24913603).

2516263601 is a wasteful number, since it uses less digits than its factorization.

2516263601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24913602.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2516263601 is about 50162.3723621601. The cubic root of 2516263601 is about 1360.1455295897.

Adding to 2516263601 its reverse (1063626152), we get a palindrome (3579889753).

The spelling of 2516263601 in words is "two billion, five hundred sixteen million, two hundred sixty-three thousand, six hundred one".