56669797 has 2 divisors, whose sum is σ = 56669798. Its totient is φ = 56669796.

The previous prime is 56669791. The next prime is 56669803. The reversal of 56669797 is 79796665.

56669797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (56669791) and next prime (56669803).

It can be written as a sum of positive squares in only one way, i.e., 45819361 + 10850436 = 6769^2 + 3294^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56669797 is a prime.

It is a super-2 number, since 2×56669797² = 6422931784042418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56669791) 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, 28334898 + 28334899.

It is an arithmetic number, because the mean of its divisors is an integer number (28334899).

Almost surely, 2^56669797 is an apocalyptic number.

It is an amenable number.

56669797 is a deficient number, since it is larger than the sum of its proper divisors (1).

56669797 is an equidigital number, since it uses as much as digits as its factorization.

56669797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4286520, while the sum is 55.

The square root of 56669797 is about 7527.9344444542. The cubic root of 56669797 is about 384.1055233902.

The spelling of 56669797 in words is "fifty-six million, six hundred sixty-nine thousand, seven hundred ninety-seven".