5256081311 has 4 divisors (see below), whose sum is σ = 5660395272. Its totient is φ = 4851767352.

The previous prime is 5256081251. The next prime is 5256081373. The reversal of 5256081311 is 1131806525.

5256081311 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5256081311 - 2⁶ = 5256081247 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 (5256011311) 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, 202156961 + ... + 202156986.

It is an arithmetic number, because the mean of its divisors is an integer number (1415098818).

Almost surely, 2^5256081311 is an apocalyptic number.

5256081311 is a deficient number, since it is larger than the sum of its proper divisors (404313961).

5256081311 is a wasteful number, since it uses less digits than its factorization.

5256081311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404313960.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 5256081311 is about 72498.8366182520. The cubic root of 5256081311 is about 1738.6841364849.

Adding to 5256081311 its reverse (1131806525), we get a palindrome (6387887836).

The spelling of 5256081311 in words is "five billion, two hundred fifty-six million, eighty-one thousand, three hundred eleven".