56813447 has 2 divisors, whose sum is σ = 56813448. Its totient is φ = 56813446.

The previous prime is 56813441. The next prime is 56813501. The reversal of 56813447 is 74431865.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56813447 - 2⁴ = 56813431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56813447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56813441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28406723 + 28406724.

It is an arithmetic number, because the mean of its divisors is an integer number (28406724).

Almost surely, 2^56813447 is an apocalyptic number.

56813447 is a deficient number, since it is larger than the sum of its proper divisors (1).

56813447 is an equidigital number, since it uses as much as digits as its factorization.

56813447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The square root of 56813447 is about 7537.4695355935. The cubic root of 56813447 is about 384.4298007838.

The spelling of 56813447 in words is "fifty-six million, eight hundred thirteen thousand, four hundred forty-seven".