42075511 has 2 divisors, whose sum is σ = 42075512. Its totient is φ = 42075510.

The previous prime is 42075499. The next prime is 42075559. The reversal of 42075511 is 11557024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42075511 - 2⁹ = 42074999 is a prime.

It is a super-2 number, since 2×42075511² = 3540697251822242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42075571) 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, 21037755 + 21037756.

It is an arithmetic number, because the mean of its divisors is an integer number (21037756).

Almost surely, 2^42075511 is an apocalyptic number.

42075511 is a deficient number, since it is larger than the sum of its proper divisors (1).

42075511 is an equidigital number, since it uses as much as digits as its factorization.

42075511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 42075511 is about 6486.5638823648. The cubic root of 42075511 is about 347.8108558405.

The spelling of 42075511 in words is "forty-two million, seventy-five thousand, five hundred eleven".