56616797 has 2 divisors, whose sum is σ = 56616798. Its totient is φ = 56616796.

The previous prime is 56616779. The next prime is 56616887. The reversal of 56616797 is 79761665.

It is a happy number.

Together with previous prime (56616779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36132121 + 20484676 = 6011^2 + 4526^2 .

It is a cyclic number.

It is not a de Polignac number, because 56616797 - 2⁶ = 56616733 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56612797) 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, 28308398 + 28308399.

It is an arithmetic number, because the mean of its divisors is an integer number (28308399).

Almost surely, 2^56616797 is an apocalyptic number.

It is an amenable number.

56616797 is a deficient number, since it is larger than the sum of its proper divisors (1).

56616797 is an equidigital number, since it uses as much as digits as its factorization.

56616797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 47.

The square root of 56616797 is about 7524.4133990631. The cubic root of 56616797 is about 383.9857421102.

The spelling of 56616797 in words is "fifty-six million, six hundred sixteen thousand, seven hundred ninety-seven".