56966969 has 2 divisors, whose sum is σ = 56966970. Its totient is φ = 56966968.

The previous prime is 56966941. The next prime is 56966977. The reversal of 56966969 is 96966965.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41126569 + 15840400 = 6413^2 + 3980^2 .

It is a cyclic number.

It is not a de Polignac number, because 56966969 - 2²⁴ = 40189753 is a prime.

It is a super-2 number, since 2×56966969² = 6490471114093922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56966369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28483484 + 28483485.

It is an arithmetic number, because the mean of its divisors is an integer number (28483485).

Almost surely, 2^56966969 is an apocalyptic number.

It is an amenable number.

56966969 is a deficient number, since it is larger than the sum of its proper divisors (1).

56966969 is an equidigital number, since it uses as much as digits as its factorization.

56966969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4723920, while the sum is 56.

The square root of 56966969 is about 7547.6465868508. The cubic root of 56966969 is about 384.7757596752.

The spelling of 56966969 in words is "fifty-six million, nine hundred sixty-six thousand, nine hundred sixty-nine".