5257447871 has 12 divisors (see below), whose sum is σ = 5814112032. Its totient is φ = 4749765696.

The previous prime is 5257447861. The next prime is 5257447873. The reversal of 5257447871 is 1787447525.

It is not a de Polignac number, because 5257447871 - 2⁶ = 5257447807 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 (5257447873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 323006 + ... + 338891.

It is an arithmetic number, because the mean of its divisors is an integer number (484509336).

Almost surely, 2^5257447871 is an apocalyptic number.

5257447871 is a deficient number, since it is larger than the sum of its proper divisors (556664161).

5257447871 is a wasteful number, since it uses less digits than its factorization.

5257447871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661970 (or 661957 counting only the distinct ones).

The product of its digits is 2195200, while the sum is 50.

The square root of 5257447871 is about 72508.2607086944. The cubic root of 5257447871 is about 1738.8348070552.

The spelling of 5257447871 in words is "five billion, two hundred fifty-seven million, four hundred forty-seven thousand, eight hundred seventy-one".