56726008531 has 4 divisors (see below), whose sum is σ = 59192356752. Its totient is φ = 54259660312.

The previous prime is 56726008529. The next prime is 56726008553. The reversal of 56726008531 is 13580062765.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56726008531 - 2¹ = 56726008529 is a prime.

It is a super-2 number, since 2×56726008531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56726008571) 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 3 ways as a sum of consecutive naturals, for example, 1233174076 + ... + 1233174121.

It is an arithmetic number, because the mean of its divisors is an integer number (14798089188).

Almost surely, 2^56726008531 is an apocalyptic number.

56726008531 is a deficient number, since it is larger than the sum of its proper divisors (2466348221).

56726008531 is a wasteful number, since it uses less digits than its factorization.

56726008531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466348220.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 56726008531 in words is "fifty-six billion, seven hundred twenty-six million, eight thousand, five hundred thirty-one".