5256776291 has 8 divisors (see below), whose sum is σ = 5662197744. Its totient is φ = 4851505440.

The previous prime is 5256776269. The next prime is 5256776311. The reversal of 5256776291 is 1926776525.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5256776291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5256776491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40940 + ... + 110406.

It is an arithmetic number, because the mean of its divisors is an integer number (707774718).

Almost surely, 2^5256776291 is an apocalyptic number.

5256776291 is a deficient number, since it is larger than the sum of its proper divisors (405421453).

5256776291 is a wasteful number, since it uses less digits than its factorization.

5256776291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75301.

The product of its digits is 1587600, while the sum is 50.

The square root of 5256776291 is about 72503.6295022532. The cubic root of 5256776291 is about 1738.7607650209.

The spelling of 5256776291 in words is "five billion, two hundred fifty-six million, seven hundred seventy-six thousand, two hundred ninety-one".