42082057 has 2 divisors, whose sum is σ = 42082058. Its totient is φ = 42082056.

The previous prime is 42082049. The next prime is 42082069. The reversal of 42082057 is 75028024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37015056 + 5067001 = 6084^2 + 2251^2 .

It is a cyclic number.

It is not a de Polignac number, because 42082057 - 2³ = 42082049 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42082037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21041028 + 21041029.

It is an arithmetic number, because the mean of its divisors is an integer number (21041029).

Almost surely, 2^42082057 is an apocalyptic number.

It is an amenable number.

42082057 is a deficient number, since it is larger than the sum of its proper divisors (1).

42082057 is an equidigital number, since it uses as much as digits as its factorization.

42082057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 42082057 is about 6487.0684442204. The cubic root of 42082057 is about 347.8288920786.

The spelling of 42082057 in words is "forty-two million, eighty-two thousand, fifty-seven".