5257216071 has 6 divisors (see below), whose sum is σ = 7593756560. Its totient is φ = 3504810708.

The previous prime is 5257216057. The next prime is 5257216183. The reversal of 5257216071 is 1706127525.

5257216071 is a `hidden beast` number, since 5 + 2 + 572 + 16 + 0 + 71 = 666.

It is not a de Polignac number, because 5257216071 - 2¹¹ = 5257214023 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 (5257216031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 292067551 + ... + 292067568.

Almost surely, 2^5257216071 is an apocalyptic number.

5257216071 is a deficient number, since it is larger than the sum of its proper divisors (2336540489).

5257216071 is a wasteful number, since it uses less digits than its factorization.

5257216071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584135125 (or 584135122 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 5257216071 is about 72506.6622525130. The cubic root of 5257216071 is about 1738.8092517007.

The spelling of 5257216071 in words is "five billion, two hundred fifty-seven million, two hundred sixteen thousand, seventy-one".