42220567 has 2 divisors, whose sum is σ = 42220568. Its totient is φ = 42220566.

The previous prime is 42220561. The next prime is 42220579. The reversal of 42220567 is 76502224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42220567 - 2³ = 42220559 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42220561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21110283 + 21110284.

It is an arithmetic number, because the mean of its divisors is an integer number (21110284).

Almost surely, 2^42220567 is an apocalyptic number.

42220567 is a deficient number, since it is larger than the sum of its proper divisors (1).

42220567 is an equidigital number, since it uses as much as digits as its factorization.

42220567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 42220567 is about 6497.7355286284. The cubic root of 42220567 is about 348.2100919045.

The spelling of 42220567 in words is "forty-two million, two hundred twenty thousand, five hundred sixty-seven".