5256719439 has 8 divisors (see below), whose sum is σ = 7015053312. Its totient is φ = 3501432600.

The previous prime is 5256719431. The next prime is 5256719443. The reversal of 5256719439 is 9349176525.

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

It is not a de Polignac number, because 5256719439 - 2³ = 5256719431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5256719391 and 5256719400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5256719431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757729 + ... + 764634.

It is an arithmetic number, because the mean of its divisors is an integer number (876881664).

Almost surely, 2^5256719439 is an apocalyptic number.

5256719439 is a deficient number, since it is larger than the sum of its proper divisors (1758333873).

5256719439 is a wasteful number, since it uses less digits than its factorization.

5256719439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523517.

The product of its digits is 2041200, while the sum is 51.

The square root of 5256719439 is about 72503.2374380620. The cubic root of 5256719439 is about 1738.7544967697.

The spelling of 5256719439 in words is "five billion, two hundred fifty-six million, seven hundred nineteen thousand, four hundred thirty-nine".