56248041389 has 18 divisors (see below), whose sum is σ = 63061822314. Its totient is φ = 50152959360.

The previous prime is 56248041349. The next prime is 56248041439. The reversal of 56248041389 is 98314084265.

It can be written as a sum of positive squares in 3 ways, for example, as 38432465764 + 17815575625 = 196042^2 + 133475^2 .

It is a de Polignac number, because none of the positive numbers 2^k-56248041389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56248041319) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 165242 + ... + 373899.

It is an arithmetic number, because the mean of its divisors is an integer number (3503434573).

Almost surely, 2^56248041389 is an apocalyptic number.

It is an amenable number.

56248041389 is a deficient number, since it is larger than the sum of its proper divisors (6813780925).

56248041389 is a wasteful number, since it uses less digits than its factorization.

56248041389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539213 (or 539177 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 56248041389 in words is "fifty-six billion, two hundred forty-eight million, forty-one thousand, three hundred eighty-nine".