2513137665 has 32 divisors (see below), whose sum is σ = 4198957056. Its totient is φ = 1281114560.

The previous prime is 2513137663. The next prime is 2513137687. The reversal of 2513137665 is 5667313152.

It is not a de Polignac number, because 2513137665 - 2¹ = 2513137663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2513137663) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 925660 + ... + 928370.

It is an arithmetic number, because the mean of its divisors is an integer number (131217408).

Almost surely, 2^2513137665 is an apocalyptic number.

It is an amenable number.

2513137665 is a deficient number, since it is larger than the sum of its proper divisors (1685819391).

2513137665 is a wasteful number, since it uses less digits than its factorization.

2513137665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5429.

The product of its digits is 113400, while the sum is 39.

The square root of 2513137665 is about 50131.2045037819. The cubic root of 2513137665 is about 1359.5820632235.

The spelling of 2513137665 in words is "two billion, five hundred thirteen million, one hundred thirty-seven thousand, six hundred sixty-five".