5256142881 has 32 divisors (see below), whose sum is σ = 8083046400. Its totient is φ = 3004620480.

The previous prime is 5256142877. The next prime is 5256142889. The reversal of 5256142881 is 1882416525.

It is not a de Polignac number, because 5256142881 - 2² = 5256142877 is a prime.

It is a super-2 number, since 2×5256142881² = 55254075970973960322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5256142889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125280 + ... + 161886.

It is an arithmetic number, because the mean of its divisors is an integer number (252595200).

Almost surely, 2^5256142881 is an apocalyptic number.

It is an amenable number.

5256142881 is a deficient number, since it is larger than the sum of its proper divisors (2826903519).

5256142881 is a wasteful number, since it uses less digits than its factorization.

5256142881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36869.

The product of its digits is 153600, while the sum is 42.

The square root of 5256142881 is about 72499.2612445120. The cubic root of 5256142881 is about 1738.6909254695.

The spelling of 5256142881 in words is "five billion, two hundred fifty-six million, one hundred forty-two thousand, eight hundred eighty-one".