56328997 has 2 divisors, whose sum is σ = 56328998. Its totient is φ = 56328996.

The previous prime is 56328989. The next prime is 56329019. The reversal of 56328997 is 79982365.

56328997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49364676 + 6964321 = 7026^2 + 2639^2 .

It is a cyclic number.

It is not a de Polignac number, because 56328997 - 2³ = 56328989 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 56328997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56328907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28164498 + 28164499.

It is an arithmetic number, because the mean of its divisors is an integer number (28164499).

Almost surely, 2^56328997 is an apocalyptic number.

It is an amenable number.

56328997 is a deficient number, since it is larger than the sum of its proper divisors (1).

56328997 is an equidigital number, since it uses as much as digits as its factorization.

56328997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 56328997 is about 7505.2646189192. The cubic root of 56328997 is about 383.3339986546. Note that the first 3 decimals are identical.

The spelling of 56328997 in words is "fifty-six million, three hundred twenty-eight thousand, nine hundred ninety-seven".