42575899 has 2 divisors, whose sum is σ = 42575900. Its totient is φ = 42575898.

The previous prime is 42575879. The next prime is 42575933. The reversal of 42575899 is 99857524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42575899 - 2⁹ = 42575387 is a prime.

It is not a weakly prime, because it can be changed into another prime (42575879) 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, 21287949 + 21287950.

It is an arithmetic number, because the mean of its divisors is an integer number (21287950).

Almost surely, 2^42575899 is an apocalyptic number.

42575899 is a deficient number, since it is larger than the sum of its proper divisors (1).

42575899 is an equidigital number, since it uses as much as digits as its factorization.

42575899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 49.

The square root of 42575899 is about 6525.0209961348. The cubic root of 42575899 is about 349.1842197841.

The spelling of 42575899 in words is "forty-two million, five hundred seventy-five thousand, eight hundred ninety-nine".