42612533 has 2 divisors, whose sum is σ = 42612534. Its totient is φ = 42612532.

The previous prime is 42612517. The next prime is 42612541. The reversal of 42612533 is 33521624.

42612533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22344529 + 20268004 = 4727^2 + 4502^2 .

It is a cyclic number.

It is not a de Polignac number, because 42612533 - 2⁴ = 42612517 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42612733) 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, 21306266 + 21306267.

It is an arithmetic number, because the mean of its divisors is an integer number (21306267).

Almost surely, 2^42612533 is an apocalyptic number.

It is an amenable number.

42612533 is a deficient number, since it is larger than the sum of its proper divisors (1).

42612533 is an equidigital number, since it uses as much as digits as its factorization.

42612533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 26.

The square root of 42612533 is about 6527.8275865712. The cubic root of 42612533 is about 349.2843417455.

Subtracting from 42612533 its reverse (33521624), we obtain a palindrome (9090909).

The spelling of 42612533 in words is "forty-two million, six hundred twelve thousand, five hundred thirty-three".