42257627 has 2 divisors, whose sum is σ = 42257628. Its totient is φ = 42257626.

The previous prime is 42257581. The next prime is 42257641. The reversal of 42257627 is 72675224.

42257627 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 a de Polignac number, because none of the positive numbers 2^k-42257627 is a prime.

It is a super-2 number, since 2×42257627² = 3571414079342258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42257687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21128813 + 21128814.

It is an arithmetic number, because the mean of its divisors is an integer number (21128814).

Almost surely, 2^42257627 is an apocalyptic number.

42257627 is a deficient number, since it is larger than the sum of its proper divisors (1).

42257627 is an equidigital number, since it uses as much as digits as its factorization.

42257627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 35.

The square root of 42257627 is about 6500.5866658326. The cubic root of 42257627 is about 348.3119450453.

The spelling of 42257627 in words is "forty-two million, two hundred fifty-seven thousand, six hundred twenty-seven".