5257111749 has 4 divisors (see below), whose sum is σ = 7009482336. Its totient is φ = 3504741164.

The previous prime is 5257111733. The next prime is 5257111757. The reversal of 5257111749 is 9471117525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5257111749 - 2⁴ = 5257111733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5257111749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5257111789) 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, 876185289 + ... + 876185294.

It is an arithmetic number, because the mean of its divisors is an integer number (1752370584).

Almost surely, 2^5257111749 is an apocalyptic number.

It is an amenable number.

5257111749 is a deficient number, since it is larger than the sum of its proper divisors (1752370587).

5257111749 is a wasteful number, since it uses less digits than its factorization.

5257111749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752370586.

The product of its digits is 88200, while the sum is 42.

The square root of 5257111749 is about 72505.9428529827. The cubic root of 5257111749 is about 1738.7977502231.

The spelling of 5257111749 in words is "five billion, two hundred fifty-seven million, one hundred eleven thousand, seven hundred forty-nine".