56812319 has 2 divisors, whose sum is σ = 56812320. Its totient is φ = 56812318.

The previous prime is 56812309. The next prime is 56812321. The reversal of 56812319 is 91321865.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56812319 - 2⁴ = 56812303 is a prime.

It is a super-2 number, since 2×56812319² = 6455279180315522, which contains 22 as substring.

Together with 56812321, 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 (56812309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28406159 + 28406160.

It is an arithmetic number, because the mean of its divisors is an integer number (28406160).

Almost surely, 2^56812319 is an apocalyptic number.

56812319 is a deficient number, since it is larger than the sum of its proper divisors (1).

56812319 is an equidigital number, since it uses as much as digits as its factorization.

56812319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 35.

The square root of 56812319 is about 7537.3947090490. The cubic root of 56812319 is about 384.4272565523.

It can be divided in two parts, 5681 and 2319, that added together give a cube (8000 = 20³).

The spelling of 56812319 in words is "fifty-six million, eight hundred twelve thousand, three hundred nineteen".