2516231613 has 16 divisors (see below), whose sum is σ = 3834961920. Its totient is φ = 1437582576.

The previous prime is 2516231611. The next prime is 2516231629. The reversal of 2516231613 is 3161326152.

It is not a de Polignac number, because 2516231613 - 2¹ = 2516231611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2516231611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201568 + ... + 213686.

It is an arithmetic number, because the mean of its divisors is an integer number (239685120).

Almost surely, 2^2516231613 is an apocalyptic number.

It is an amenable number.

2516231613 is a deficient number, since it is larger than the sum of its proper divisors (1318730307).

2516231613 is a wasteful number, since it uses less digits than its factorization.

2516231613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22016.

The product of its digits is 6480, while the sum is 30.

The square root of 2516231613 is about 50162.0535165776. The cubic root of 2516231613 is about 1360.1397659488.

Adding to 2516231613 its reverse (3161326152), we get a palindrome (5677557765).

The spelling of 2516231613 in words is "two billion, five hundred sixteen million, two hundred thirty-one thousand, six hundred thirteen".