5257797765 has 32 divisors (see below), whose sum is σ = 9194366592. Its totient is φ = 2544480000.

The previous prime is 5257797751. The next prime is 5257797829. The reversal of 5257797765 is 5677977525.

It is a happy number.

It is not a de Polignac number, because 5257797765 - 2⁵ = 5257797733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5257797699 and 5257797708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59815 + ... + 118715.

It is an arithmetic number, because the mean of its divisors is an integer number (287323956).

Almost surely, 2^5257797765 is an apocalyptic number.

5257797765 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5257797765 is a deficient number, since it is larger than the sum of its proper divisors (3936568827).

5257797765 is a wasteful number, since it uses less digits than its factorization.

5257797765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59461.

The product of its digits is 32413500, while the sum is 60.

The square root of 5257797765 is about 72510.6734557058. The cubic root of 5257797765 is about 1738.8733805471.

The spelling of 5257797765 in words is "five billion, two hundred fifty-seven million, seven hundred ninety-seven thousand, seven hundred sixty-five".