5081525857 has 4 divisors (see below), whose sum is σ = 5084572180. Its totient is φ = 5078479536.

The previous prime is 5081525843. The next prime is 5081525887. The reversal of 5081525857 is 7585251805.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3191798016 + 1889727841 = 56496^2 + 43471^2 .

It is a cyclic number.

It is not a de Polignac number, because 5081525857 - 2¹⁵ = 5081493089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5081525807) 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, 1520658 + ... + 1523995.

It is an arithmetic number, because the mean of its divisors is an integer number (1271143045).

Almost surely, 2^5081525857 is an apocalyptic number.

It is an amenable number.

5081525857 is a deficient number, since it is larger than the sum of its proper divisors (3046323).

5081525857 is a wasteful number, since it uses less digits than its factorization.

5081525857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046322.

The product of its (nonzero) digits is 560000, while the sum is 46.

The square root of 5081525857 is about 71284.8220661313. The cubic root of 5081525857 is about 1719.2197038655.

The spelling of 5081525857 in words is "five billion, eighty-one million, five hundred twenty-five thousand, eight hundred fifty-seven".