2571538813 has 16 divisors (see below), whose sum is σ = 2799912960. Its totient is φ = 2351897856.

The previous prime is 2571538787. The next prime is 2571538817. The reversal of 2571538813 is 3188351752.

2571538813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2571538813 is a prime.

It is a super-2 number, since 2×2571538813² = 13225623733530897938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2571538813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2571538817) 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, 616228 + ... + 620386.

It is an arithmetic number, because the mean of its divisors is an integer number (174994560).

Almost surely, 2^2571538813 is an apocalyptic number.

It is an amenable number.

2571538813 is a deficient number, since it is larger than the sum of its proper divisors (228374147).

2571538813 is a wasteful number, since it uses less digits than its factorization.

2571538813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5196.

The product of its digits is 201600, while the sum is 43.

The square root of 2571538813 is about 50710.3422686142. The cubic root of 2571538813 is about 1370.0329991874.

The spelling of 2571538813 in words is "two billion, five hundred seventy-one million, five hundred thirty-eight thousand, eight hundred thirteen".