56623847249 has 4 divisors (see below), whose sum is σ = 56630680164. Its totient is φ = 56617014336.

The previous prime is 56623847237. The next prime is 56623847261. The reversal of 56623847249 is 94274832665.

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

It is an interprime number because it is at equal distance from previous prime (56623847237) and next prime (56623847261).

It can be written as a sum of positive squares in 2 ways, for example, as 48147330625 + 8476516624 = 219425^2 + 92068^2 .

It is a cyclic number.

It is not a de Polignac number, because 56623847249 - 2²⁸ = 56355411793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56623847194 and 56623847203.

It is not an unprimeable number, because it can be changed into a prime (56623847219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3404012 + ... + 3420605.

It is an arithmetic number, because the mean of its divisors is an integer number (14157670041).

Almost surely, 2^56623847249 is an apocalyptic number.

It is an amenable number.

56623847249 is a deficient number, since it is larger than the sum of its proper divisors (6832915).

56623847249 is an equidigital number, since it uses as much as digits as its factorization.

56623847249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6832914.

The product of its digits is 17418240, while the sum is 56.

The spelling of 56623847249 in words is "fifty-six billion, six hundred twenty-three million, eight hundred forty-seven thousand, two hundred forty-nine".