42536233 has 2 divisors, whose sum is σ = 42536234. Its totient is φ = 42536232.

The previous prime is 42536213. The next prime is 42536239. The reversal of 42536233 is 33263524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42029289 + 506944 = 6483^2 + 712^2 .

It is a cyclic number.

It is not a de Polignac number, because 42536233 - 2²¹ = 40439081 is a prime.

It is a super-2 number, since 2×42536233² = 3618662235660578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42536239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21268116 + 21268117.

It is an arithmetic number, because the mean of its divisors is an integer number (21268117).

Almost surely, 2^42536233 is an apocalyptic number.

It is an amenable number.

42536233 is a deficient number, since it is larger than the sum of its proper divisors (1).

42536233 is an equidigital number, since it uses as much as digits as its factorization.

42536233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 28.

The square root of 42536233 is about 6521.9807574080. The cubic root of 42536233 is about 349.0757464837.

Adding to 42536233 its reverse (33263524), we get a palindrome (75799757).

The spelling of 42536233 in words is "forty-two million, five hundred thirty-six thousand, two hundred thirty-three".