42057011 has 2 divisors, whose sum is σ = 42057012. Its totient is φ = 42057010.

The previous prime is 42057007. The next prime is 42057017. The reversal of 42057011 is 11075024.

42057011 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 42057011 - 2² = 42057007 is a prime.

It is not a weakly prime, because it can be changed into another prime (42057017) 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, 21028505 + 21028506.

It is an arithmetic number, because the mean of its divisors is an integer number (21028506).

Almost surely, 2^42057011 is an apocalyptic number.

42057011 is a deficient number, since it is larger than the sum of its proper divisors (1).

42057011 is an equidigital number, since it uses as much as digits as its factorization.

42057011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 42057011 is about 6485.1377009282. The cubic root of 42057011 is about 347.7598725491.

The spelling of 42057011 in words is "forty-two million, fifty-seven thousand, eleven".