5213806757 has 4 divisors (see below), whose sum is σ = 5215455180. Its totient is φ = 5212158336.

The previous prime is 5213806753. The next prime is 5213806769. The reversal of 5213806757 is 7576083125.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3211602241 + 2002204516 = 56671^2 + 44746^2 .

It is a cyclic number.

It is not a de Polignac number, because 5213806757 - 2² = 5213806753 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 (5213806753) 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, 819458 + ... + 825795.

It is an arithmetic number, because the mean of its divisors is an integer number (1303863795).

Almost surely, 2^5213806757 is an apocalyptic number.

It is an amenable number.

5213806757 is a deficient number, since it is larger than the sum of its proper divisors (1648423).

5213806757 is a wasteful number, since it uses less digits than its factorization.

5213806757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648422.

The product of its (nonzero) digits is 352800, while the sum is 44.

The square root of 5213806757 is about 72206.6946826955. The cubic root of 5213806757 is about 1734.0101828971.

The spelling of 5213806757 in words is "five billion, two hundred thirteen million, eight hundred six thousand, seven hundred fifty-seven".