5207171256 has 48 divisors (see below), whose sum is σ = 16117436400. Its totient is φ = 1487763072.

The previous prime is 5207171239. The next prime is 5207171261. The reversal of 5207171256 is 6521717025.

5207171256 is a `hidden beast` number, since 520 + 7 + 1 + 7 + 125 + 6 = 666.

It is a super-2 number, since 2×5207171256² = 54229264978625235072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 5207171256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5165341 + ... + 5166348.

It is an arithmetic number, because the mean of its divisors is an integer number (335779925).

Almost surely, 2^5207171256 is an apocalyptic number.

5207171256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

5207171256 is an abundant number, since it is smaller than the sum of its proper divisors (10910265144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5207171256 is a wasteful number, since it uses less digits than its factorization.

5207171256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10331708 (or 10331701 counting only the distinct ones).

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

The square root of 5207171256 is about 72160.7320916300. The cubic root of 5207171256 is about 1733.2742579800.

The spelling of 5207171256 in words is "five billion, two hundred seven million, one hundred seventy-one thousand, two hundred fifty-six".