2513113251 has 48 divisors (see below), whose sum is σ = 3764619264. Its totient is φ = 1489752000.

The previous prime is 2513113241. The next prime is 2513113283. The reversal of 2513113251 is 1523113152.

It is not a de Polignac number, because 2513113251 - 2⁵ = 2513113219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2513113241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4645041 + ... + 4645581.

It is an arithmetic number, because the mean of its divisors is an integer number (78429568).

Almost surely, 2^2513113251 is an apocalyptic number.

2513113251 is a deficient number, since it is larger than the sum of its proper divisors (1251506013).

2513113251 is a wasteful number, since it uses less digits than its factorization.

2513113251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 813 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 2513113251 is about 50130.9610021591. The cubic root of 2513113251 is about 1359.5776606336.

Subtracting from 2513113251 its reverse (1523113152), we obtain a palindrome (990000099).

The spelling of 2513113251 in words is "two billion, five hundred thirteen million, one hundred thirteen thousand, two hundred fifty-one".