42211633 has 2 divisors, whose sum is σ = 42211634. Its totient is φ = 42211632.

The previous prime is 42211619. The next prime is 42211643. The reversal of 42211633 is 33611224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40742689 + 1468944 = 6383^2 + 1212^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42211633 is a prime.

It is not a weakly prime, because it can be changed into another prime (42211613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21105816 + 21105817.

It is an arithmetic number, because the mean of its divisors is an integer number (21105817).

Almost surely, 2^42211633 is an apocalyptic number.

It is an amenable number.

42211633 is a deficient number, since it is larger than the sum of its proper divisors (1).

42211633 is an equidigital number, since it uses as much as digits as its factorization.

42211633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 22.

The square root of 42211633 is about 6497.0480219866. The cubic root of 42211633 is about 348.1855294015.

Adding to 42211633 its reverse (33611224), we get a palindrome (75822857).

The spelling of 42211633 in words is "forty-two million, two hundred eleven thousand, six hundred thirty-three".