2552168813 has 8 divisors (see below), whose sum is σ = 2595142680. Its totient is φ = 2509231680.

The previous prime is 2552168807. The next prime is 2552168873. The reversal of 2552168813 is 3188612552.

It can be written as a sum of positive squares in 4 ways, for example, as 51868804 + 2500300009 = 7202^2 + 50003^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2552168813 - 2⁴ = 2552168797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2552168873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155483 + ... + 171111.

It is an arithmetic number, because the mean of its divisors is an integer number (324392835).

Almost surely, 2^2552168813 is an apocalyptic number.

It is an amenable number.

2552168813 is a deficient number, since it is larger than the sum of its proper divisors (42973867).

2552168813 is a wasteful number, since it uses less digits than its factorization.

2552168813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18367.

The product of its digits is 115200, while the sum is 41.

The square root of 2552168813 is about 50518.9945762977. The cubic root of 2552168813 is about 1366.5844219857.

The spelling of 2552168813 in words is "two billion, five hundred fifty-two million, one hundred sixty-eight thousand, eight hundred thirteen".