2533756868 has 12 divisors (see below), whose sum is σ = 4542222972. Its totient is φ = 1235978880.

The previous prime is 2533756867. The next prime is 2533756873. The reversal of 2533756868 is 8686573352.

It can be written as a sum of positive squares in 2 ways, for example, as 618119044 + 1915637824 = 24862^2 + 43768^2 .

It is a super-2 number, since 2×2533756868² = 12839847732274338848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2533756867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7724705 + ... + 7725032.

It is an arithmetic number, because the mean of its divisors is an integer number (378518581).

Almost surely, 2^2533756868 is an apocalyptic number.

It is an amenable number.

2533756868 is a deficient number, since it is larger than the sum of its proper divisors (2008466104).

2533756868 is a wasteful number, since it uses less digits than its factorization.

2533756868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15449782 (or 15449780 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 53.

The square root of 2533756868 is about 50336.4367829110. The cubic root of 2533756868 is about 1363.2902005246.

The spelling of 2533756868 in words is "two billion, five hundred thirty-three million, seven hundred fifty-six thousand, eight hundred sixty-eight".