42235801 has 2 divisors, whose sum is σ = 42235802. Its totient is φ = 42235800.

The previous prime is 42235783. The next prime is 42235811. The reversal of 42235801 is 10853224.

42235801 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., 32501401 + 9734400 = 5701^2 + 3120^2 .

It is a cyclic number.

It is not a de Polignac number, because 42235801 - 2¹¹ = 42233753 is a prime.

It is a super-2 number, since 2×42235801² = 3567725772223202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42235811) 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, 21117900 + 21117901.

It is an arithmetic number, because the mean of its divisors is an integer number (21117901).

Almost surely, 2^42235801 is an apocalyptic number.

It is an amenable number.

42235801 is a deficient number, since it is larger than the sum of its proper divisors (1).

42235801 is an equidigital number, since it uses as much as digits as its factorization.

42235801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 42235801 is about 6498.9076774486. The cubic root of 42235801 is about 348.2519671882.

The spelling of 42235801 in words is "forty-two million, two hundred thirty-five thousand, eight hundred one".