56578649359 has 2 divisors, whose sum is σ = 56578649360. Its totient is φ = 56578649358.

The previous prime is 56578649341. The next prime is 56578649383. The reversal of 56578649359 is 95394687565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56578649359 - 2⁵ = 56578649327 is a prime.

It is a super-2 number, since 2×56578649359² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56578649294 and 56578649303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56578649389) 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 as a sum of consecutive naturals, namely, 28289324679 + 28289324680.

It is an arithmetic number, because the mean of its divisors is an integer number (28289324680).

Almost surely, 2^56578649359 is an apocalyptic number.

56578649359 is a deficient number, since it is larger than the sum of its proper divisors (1).

56578649359 is an equidigital number, since it uses as much as digits as its factorization.

56578649359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944000, while the sum is 67.

The spelling of 56578649359 in words is "fifty-six billion, five hundred seventy-eight million, six hundred forty-nine thousand, three hundred fifty-nine".