56995919 has 2 divisors, whose sum is σ = 56995920. Its totient is φ = 56995918.

The previous prime is 56995903. The next prime is 56995921. The reversal of 56995919 is 91959965.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56995919 - 2⁴ = 56995903 is a prime.

It is a super-2 number, since 2×56995919² = 6497069565309122, which contains 22 as substring.

Together with 56995921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56995969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28497959 + 28497960.

It is an arithmetic number, because the mean of its divisors is an integer number (28497960).

Almost surely, 2^56995919 is an apocalyptic number.

56995919 is a deficient number, since it is larger than the sum of its proper divisors (1).

56995919 is an equidigital number, since it uses as much as digits as its factorization.

56995919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 984150, while the sum is 53.

The square root of 56995919 is about 7549.5641596055. The cubic root of 56995919 is about 384.8409282692.

The spelling of 56995919 in words is "fifty-six million, nine hundred ninety-five thousand, nine hundred nineteen".