56407019 has 2 divisors, whose sum is σ = 56407020. Its totient is φ = 56407018.

The previous prime is 56407007. The next prime is 56407061. The reversal of 56407019 is 91070465.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56407019 is a prime.

It is a super-2 number, since 2×56407019² = 6363503584932722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56407069) 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, 28203509 + 28203510.

It is an arithmetic number, because the mean of its divisors is an integer number (28203510).

Almost surely, 2^56407019 is an apocalyptic number.

56407019 is a deficient number, since it is larger than the sum of its proper divisors (1).

56407019 is an equidigital number, since it uses as much as digits as its factorization.

56407019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 56407019 is about 7510.4606383364. The cubic root of 56407019 is about 383.5109039111.

The spelling of 56407019 in words is "fifty-six million, four hundred seven thousand, nineteen".