42055019 has 2 divisors, whose sum is σ = 42055020. Its totient is φ = 42055018.

The previous prime is 42054973. The next prime is 42055033. The reversal of 42055019 is 91055024.

42055019 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 42055019 - 2¹⁶ = 41989483 is a prime.

It is a super-2 number, since 2×42055019² = 3537249246180722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42055099) 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, 21027509 + 21027510.

It is an arithmetic number, because the mean of its divisors is an integer number (21027510).

Almost surely, 2^42055019 is an apocalyptic number.

42055019 is a deficient number, since it is larger than the sum of its proper divisors (1).

42055019 is an equidigital number, since it uses as much as digits as its factorization.

42055019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 42055019 is about 6484.9841171741. The cubic root of 42055019 is about 347.7543819972.

The spelling of 42055019 in words is "forty-two million, fifty-five thousand, nineteen".