42255427 has 2 divisors, whose sum is σ = 42255428. Its totient is φ = 42255426.

The previous prime is 42255329. The next prime is 42255463. The reversal of 42255427 is 72455224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42255427 - 2⁷ = 42255299 is a prime.

It is a super-2 number, since 2×42255427² = 3571042221904658, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42255467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21127713 + 21127714.

It is an arithmetic number, because the mean of its divisors is an integer number (21127714).

Almost surely, 2^42255427 is an apocalyptic number.

42255427 is a deficient number, since it is larger than the sum of its proper divisors (1).

42255427 is an equidigital number, since it uses as much as digits as its factorization.

42255427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 31.

The square root of 42255427 is about 6500.4174481336. The cubic root of 42255427 is about 348.3059003805.

The spelling of 42255427 in words is "forty-two million, two hundred fifty-five thousand, four hundred twenty-seven".