5256445791 has 8 divisors (see below), whose sum is σ = 7020143104. Its totient is φ = 3498522840.

The previous prime is 5256445771. The next prime is 5256445793. The reversal of 5256445791 is 1975446525.

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

It is not a de Polignac number, because 5256445791 - 2⁹ = 5256445279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5256445791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5256445793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1441465 + ... + 1445106.

It is an arithmetic number, because the mean of its divisors is an integer number (877517888).

Almost surely, 2^5256445791 is an apocalyptic number.

5256445791 is a deficient number, since it is larger than the sum of its proper divisors (1763697313).

5256445791 is a wasteful number, since it uses less digits than its factorization.

5256445791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887181.

The product of its digits is 1512000, while the sum is 48.

The square root of 5256445791 is about 72501.3502701846. The cubic root of 5256445791 is about 1738.7243249136.

The spelling of 5256445791 in words is "five billion, two hundred fifty-six million, four hundred forty-five thousand, seven hundred ninety-one".