42175957 has 2 divisors, whose sum is σ = 42175958. Its totient is φ = 42175956.

The previous prime is 42175937. The next prime is 42175981. The reversal of 42175957 is 75957124.

42175957 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 can be written as a sum of positive squares in only one way, i.e., 30404196 + 11771761 = 5514^2 + 3431^2 .

It is a cyclic number.

It is not a de Polignac number, because 42175957 - 2⁷ = 42175829 is a prime.

It is a super-2 number, since 2×42175957² = 3557622697731698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42175937) 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, 21087978 + 21087979.

It is an arithmetic number, because the mean of its divisors is an integer number (21087979).

Almost surely, 2^42175957 is an apocalyptic number.

It is an amenable number.

42175957 is a deficient number, since it is larger than the sum of its proper divisors (1).

42175957 is an equidigital number, since it uses as much as digits as its factorization.

42175957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 40.

The square root of 42175957 is about 6494.3018870391. The cubic root of 42175957 is about 348.0874097819.

The spelling of 42175957 in words is "forty-two million, one hundred seventy-five thousand, nine hundred fifty-seven".