56006519 has 2 divisors, whose sum is σ = 56006520. Its totient is φ = 56006518.

The previous prime is 56006507. The next prime is 56006521. The reversal of 56006519 is 91560065.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56006519 is a prime.

It is a super-2 number, since 2×56006519² = 6273460340994722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 56006521, 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 (56006579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28003259 + 28003260.

It is an arithmetic number, because the mean of its divisors is an integer number (28003260).

Almost surely, 2^56006519 is an apocalyptic number.

56006519 is a deficient number, since it is larger than the sum of its proper divisors (1).

56006519 is an equidigital number, since it uses as much as digits as its factorization.

56006519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 56006519 is about 7483.7503298814. The cubic root of 56006519 is about 382.6010816908.

The spelling of 56006519 in words is "fifty-six million, six thousand, five hundred nineteen".