42523339 has 2 divisors, whose sum is σ = 42523340. Its totient is φ = 42523338.

The previous prime is 42523333. The next prime is 42523357. The reversal of 42523339 is 93332524.

42523339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42523339 - 2⁷ = 42523211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42523339.

It is not a weakly prime, because it can be changed into another prime (42523333) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21261669 + 21261670.

It is an arithmetic number, because the mean of its divisors is an integer number (21261670).

Almost surely, 2^42523339 is an apocalyptic number.

42523339 is a deficient number, since it is larger than the sum of its proper divisors (1).

42523339 is an equidigital number, since it uses as much as digits as its factorization.

42523339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 31.

The square root of 42523339 is about 6520.9921791089. The cubic root of 42523339 is about 349.0404711648.

The spelling of 42523339 in words is "forty-two million, five hundred twenty-three thousand, three hundred thirty-nine".