5271538857 has 16 divisors (see below), whose sum is σ = 8014648320. Its totient is φ = 3053198592.

The previous prime is 5271538849. The next prime is 5271538859. The reversal of 5271538857 is 7588351725.

It is not a de Polignac number, because 5271538857 - 2³ = 5271538849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (5271538859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3974857 + ... + 3976182.

It is an arithmetic number, because the mean of its divisors is an integer number (500915520).

Almost surely, 2^5271538857 is an apocalyptic number.

It is an amenable number.

5271538857 is a deficient number, since it is larger than the sum of its proper divisors (2743109463).

5271538857 is a wasteful number, since it uses less digits than its factorization.

5271538857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7951072.

The product of its digits is 2352000, while the sum is 51.

The square root of 5271538857 is about 72605.3638307804. The cubic root of 5271538857 is about 1740.3868934226.

The spelling of 5271538857 in words is "five billion, two hundred seventy-one million, five hundred thirty-eight thousand, eight hundred fifty-seven".