42755233 has 2 divisors, whose sum is σ = 42755234. Its totient is φ = 42755232.

The previous prime is 42755203. The next prime is 42755249. The reversal of 42755233 is 33255724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42667024 + 88209 = 6532^2 + 297^2 .

It is a cyclic number.

It is not a de Polignac number, because 42755233 - 2¹⁷ = 42624161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42755195 and 42755204.

It is not a weakly prime, because it can be changed into another prime (42755203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21377616 + 21377617.

It is an arithmetic number, because the mean of its divisors is an integer number (21377617).

Almost surely, 2^42755233 is an apocalyptic number.

It is an amenable number.

42755233 is a deficient number, since it is larger than the sum of its proper divisors (1).

42755233 is an equidigital number, since it uses as much as digits as its factorization.

42755233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 31.

The square root of 42755233 is about 6538.7485805772. The cubic root of 42755233 is about 349.6737994764.

The spelling of 42755233 in words is "forty-two million, seven hundred fifty-five thousand, two hundred thirty-three".