42030533 has 2 divisors, whose sum is σ = 42030534. Its totient is φ = 42030532.

The previous prime is 42030497. The next prime is 42030559. The reversal of 42030533 is 33503024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41964484 + 66049 = 6478^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 42030533 - 2⁸ = 42030277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42032533) 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, 21015266 + 21015267.

It is an arithmetic number, because the mean of its divisors is an integer number (21015267).

Almost surely, 2^42030533 is an apocalyptic number.

It is an amenable number.

42030533 is a deficient number, since it is larger than the sum of its proper divisors (1).

42030533 is an equidigital number, since it uses as much as digits as its factorization.

42030533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 42030533 is about 6483.0959425262. The cubic root of 42030533 is about 347.6868770387.

Adding to 42030533 its reverse (33503024), we get a palindrome (75533557).

The spelling of 42030533 in words is "forty-two million, thirty thousand, five hundred thirty-three".