533421961 has 2 divisors, whose sum is σ = 533421962. Its totient is φ = 533421960.

The previous prime is 533421887. The next prime is 533422031. The reversal of 533421961 is 169124335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 347263225 + 186158736 = 18635^2 + 13644^2 .

It is a cyclic number.

It is not a de Polignac number, because 533421961 - 2²¹ = 531324809 is a prime.

It is not a weakly prime, because it can be changed into another prime (533421761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266710980 + 266710981.

It is an arithmetic number, because the mean of its divisors is an integer number (266710981).

Almost surely, 2^533421961 is an apocalyptic number.

It is an amenable number.

533421961 is a deficient number, since it is larger than the sum of its proper divisors (1).

533421961 is an equidigital number, since it uses as much as digits as its factorization.

533421961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 34.

The square root of 533421961 is about 23095.9295331450. The cubic root of 533421961 is about 811.0051845360.

The spelling of 533421961 in words is "five hundred thirty-three million, four hundred twenty-one thousand, nine hundred sixty-one".