56242019 has 2 divisors, whose sum is σ = 56242020. Its totient is φ = 56242018.

The previous prime is 56242013. The next prime is 56242073. The reversal of 56242019 is 91024265.

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-56242019 is a prime.

It is a super-2 number, since 2×56242019² = 6326329402392722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56241982 and 56242000.

It is not a weakly prime, because it can be changed into another prime (56242013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28121009 + 28121010.

It is an arithmetic number, because the mean of its divisors is an integer number (28121010).

Almost surely, 2^56242019 is an apocalyptic number.

56242019 is a deficient number, since it is larger than the sum of its proper divisors (1).

56242019 is an equidigital number, since it uses as much as digits as its factorization.

56242019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 56242019 is about 7499.4679144590. The cubic root of 56242019 is about 383.1365941083.

The spelling of 56242019 in words is "fifty-six million, two hundred forty-two thousand, nineteen".