5257780831 has 4 divisors (see below), whose sum is σ = 5321127672. Its totient is φ = 5194433992.

The previous prime is 5257780813. The next prime is 5257780849. The reversal of 5257780831 is 1380877525.

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

It is an interprime number because it is at equal distance from previous prime (5257780813) and next prime (5257780849).

It is a cyclic number.

It is not a de Polignac number, because 5257780831 - 2²⁷ = 5123563103 is a prime.

It is a super-2 number, since 2×5257780831² = 55288518533662101122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5257787831) 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, 31673296 + ... + 31673461.

It is an arithmetic number, because the mean of its divisors is an integer number (1330281918).

Almost surely, 2^5257780831 is an apocalyptic number.

5257780831 is a deficient number, since it is larger than the sum of its proper divisors (63346841).

5257780831 is an equidigital number, since it uses as much as digits as its factorization.

5257780831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63346840.

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 5257780831 is about 72510.5566865956. The cubic root of 5257780831 is about 1738.8715137254.

The spelling of 5257780831 in words is "five billion, two hundred fifty-seven million, seven hundred eighty thousand, eight hundred thirty-one".