42268255531 has 2 divisors, whose sum is σ = 42268255532. Its totient is φ = 42268255530.

The previous prime is 42268255517. The next prime is 42268255571. The reversal of 42268255531 is 13555286224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42268255531 - 2⁵ = 42268255499 is a prime.

It is a super-2 number, since 2×42268255531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42268255571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21134127765 + 21134127766.

It is an arithmetic number, because the mean of its divisors is an integer number (21134127766).

Almost surely, 2^42268255531 is an apocalyptic number.

42268255531 is a deficient number, since it is larger than the sum of its proper divisors (1).

42268255531 is an equidigital number, since it uses as much as digits as its factorization.

42268255531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576000, while the sum is 43.

The spelling of 42268255531 in words is "forty-two billion, two hundred sixty-eight million, two hundred fifty-five thousand, five hundred thirty-one".