42583217 has 2 divisors, whose sum is σ = 42583218. Its totient is φ = 42583216.

The previous prime is 42583159. The next prime is 42583273. The reversal of 42583217 is 71238524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42393121 + 190096 = 6511^2 + 436^2 .

It is a cyclic number.

It is not a de Polignac number, because 42583217 - 2⁸ = 42582961 is a prime.

It is not a weakly prime, because it can be changed into another prime (42583117) 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, 21291608 + 21291609.

It is an arithmetic number, because the mean of its divisors is an integer number (21291609).

Almost surely, 2^42583217 is an apocalyptic number.

It is an amenable number.

42583217 is a deficient number, since it is larger than the sum of its proper divisors (1).

42583217 is an equidigital number, since it uses as much as digits as its factorization.

42583217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 32.

The square root of 42583217 is about 6525.5817365197. The cubic root of 42583217 is about 349.2042247149.

The spelling of 42583217 in words is "forty-two million, five hundred eighty-three thousand, two hundred seventeen".