56667419 has 2 divisors, whose sum is σ = 56667420. Its totient is φ = 56667418.

The previous prime is 56667397. The next prime is 56667433. The reversal of 56667419 is 91476665.

It is a happy number.

56667419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56667419 - 2²⁴ = 39890203 is a prime.

It is a super-2 number, since 2×56667419² = 6422392752243122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56667419.

It is not a weakly prime, because it can be changed into another prime (56667319) 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, 28333709 + 28333710.

It is an arithmetic number, because the mean of its divisors is an integer number (28333710).

Almost surely, 2^56667419 is an apocalyptic number.

56667419 is a deficient number, since it is larger than the sum of its proper divisors (1).

56667419 is an equidigital number, since it uses as much as digits as its factorization.

56667419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The square root of 56667419 is about 7527.7764977449. The cubic root of 56667419 is about 384.1001506534.

The spelling of 56667419 in words is "fifty-six million, six hundred sixty-seven thousand, four hundred nineteen".