2513549813 has 16 divisors (see below), whose sum is σ = 2599476096. Its totient is φ = 2428911360.

The previous prime is 2513549699. The next prime is 2513549833. The reversal of 2513549813 is 3189453152.

It is a cyclic number.

It is not a de Polignac number, because 2513549813 - 2¹⁸ = 2513287669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2513549833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3053720 + ... + 3054542.

It is an arithmetic number, because the mean of its divisors is an integer number (162467256).

Almost surely, 2^2513549813 is an apocalyptic number.

It is an amenable number.

2513549813 is a deficient number, since it is larger than the sum of its proper divisors (85926283).

2513549813 is a wasteful number, since it uses less digits than its factorization.

2513549813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484.

The product of its digits is 129600, while the sum is 41.

The square root of 2513549813 is about 50135.3150284308. The cubic root of 2513549813 is about 1359.6563817944.

The spelling of 2513549813 in words is "two billion, five hundred thirteen million, five hundred forty-nine thousand, eight hundred thirteen".