21033059 has 2 divisors, whose sum is σ = 21033060. Its totient is φ = 21033058.

The previous prime is 21033053. The next prime is 21033071. The reversal of 21033059 is 95033012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21033059 - 2²⁰ = 19984483 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (21033053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516529 + 10516530.

It is an arithmetic number, because the mean of its divisors is an integer number (10516530).

Almost surely, 2^21033059 is an apocalyptic number.

21033059 is a deficient number, since it is larger than the sum of its proper divisors (1).

21033059 is an equidigital number, since it uses as much as digits as its factorization.

21033059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 21033059 is about 4586.1813091067. The cubic root of 21033059 is about 276.0371151865.

The spelling of 21033059 in words is "twenty-one million, thirty-three thousand, fifty-nine".