42575213 has 2 divisors, whose sum is σ = 42575214. Its totient is φ = 42575212.

The previous prime is 42575209. The next prime is 42575227. The reversal of 42575213 is 31257524.

It is a happy number.

42575213 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., 42276004 + 299209 = 6502^2 + 547^2 .

It is a cyclic number.

It is not a de Polignac number, because 42575213 - 2² = 42575209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42575263) 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, 21287606 + 21287607.

It is an arithmetic number, because the mean of its divisors is an integer number (21287607).

Almost surely, 2^42575213 is an apocalyptic number.

It is an amenable number.

42575213 is a deficient number, since it is larger than the sum of its proper divisors (1).

42575213 is an equidigital number, since it uses as much as digits as its factorization.

42575213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 29.

The square root of 42575213 is about 6524.9684290424. The cubic root of 42575213 is about 349.1823443752.

It can be divided in two parts, 4257521 and 3, that added together give a palindrome (4257524).

The spelling of 42575213 in words is "forty-two million, five hundred seventy-five thousand, two hundred thirteen".