56512823 has 2 divisors, whose sum is σ = 56512824. Its totient is φ = 56512822.

The previous prime is 56512789. The next prime is 56512831. The reversal of 56512823 is 32821565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56512823 - 2⁶ = 56512759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56512823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56512853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28256411 + 28256412.

It is an arithmetic number, because the mean of its divisors is an integer number (28256412).

Almost surely, 2^56512823 is an apocalyptic number.

56512823 is a deficient number, since it is larger than the sum of its proper divisors (1).

56512823 is an equidigital number, since it uses as much as digits as its factorization.

56512823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 32.

The square root of 56512823 is about 7517.5011140671. The cubic root of 56512823 is about 383.7505410129.

The spelling of 56512823 in words is "fifty-six million, five hundred twelve thousand, eight hundred twenty-three".