42255527 has 2 divisors, whose sum is σ = 42255528. Its totient is φ = 42255526.

The previous prime is 42255497. The next prime is 42255547. The reversal of 42255527 is 72555224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42255527 - 2⁶ = 42255463 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42255493 and 42255502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42255547) 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, 21127763 + 21127764.

It is an arithmetic number, because the mean of its divisors is an integer number (21127764).

Almost surely, 2^42255527 is an apocalyptic number.

42255527 is a deficient number, since it is larger than the sum of its proper divisors (1).

42255527 is an equidigital number, since it uses as much as digits as its factorization.

42255527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28000, while the sum is 32.

The square root of 42255527 is about 6500.4251399428. The cubic root of 42255527 is about 348.3061751425.

The spelling of 42255527 in words is "forty-two million, two hundred fifty-five thousand, five hundred twenty-seven".