56819699 has 2 divisors, whose sum is σ = 56819700. Its totient is φ = 56819698.

The previous prime is 56819669. The next prime is 56819717. The reversal of 56819699 is 99691865.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56819699 - 2¹⁶ = 56754163 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56819699.

It is not a weakly prime, because it can be changed into another prime (56819669) 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, 28409849 + 28409850.

It is an arithmetic number, because the mean of its divisors is an integer number (28409850).

Almost surely, 2^56819699 is an apocalyptic number.

56819699 is a deficient number, since it is larger than the sum of its proper divisors (1).

56819699 is an equidigital number, since it uses as much as digits as its factorization.

56819699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1049760, while the sum is 53.

The square root of 56819699 is about 7537.8842522289. The cubic root of 56819699 is about 384.4439017117.

The spelling of 56819699 in words is "fifty-six million, eight hundred nineteen thousand, six hundred ninety-nine".