42535331 has 2 divisors, whose sum is σ = 42535332. Its totient is φ = 42535330.

The previous prime is 42535313. The next prime is 42535369. The reversal of 42535331 is 13353524.

Together with previous prime (42535313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42535331 is a prime.

It is a super-2 number, since 2×42535331² = 3618508766559122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42535331.

It is not a weakly prime, because it can be changed into another prime (42535391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21267665 + 21267666.

It is an arithmetic number, because the mean of its divisors is an integer number (21267666).

Almost surely, 2^42535331 is an apocalyptic number.

42535331 is a deficient number, since it is larger than the sum of its proper divisors (1).

42535331 is an equidigital number, since it uses as much as digits as its factorization.

42535331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 26.

The square root of 42535331 is about 6521.9116062701. The cubic root of 42535331 is about 349.0732790300.

Adding to 42535331 its reverse (13353524), we get a palindrome (55888855).

The spelling of 42535331 in words is "forty-two million, five hundred thirty-five thousand, three hundred thirty-one".