52021133 has 2 divisors, whose sum is σ = 52021134. Its totient is φ = 52021132.

The previous prime is 52021129. The next prime is 52021141. The reversal of 52021133 is 33112025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42797764 + 9223369 = 6542^2 + 3037^2 .

It is a cyclic number.

It is not a de Polignac number, because 52021133 - 2² = 52021129 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52021033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26010566 + 26010567.

It is an arithmetic number, because the mean of its divisors is an integer number (26010567).

Almost surely, 2^52021133 is an apocalyptic number.

It is an amenable number.

52021133 is a deficient number, since it is larger than the sum of its proper divisors (1).

52021133 is an equidigital number, since it uses as much as digits as its factorization.

52021133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 52021133 is about 7212.5677119872. The cubic root of 52021133 is about 373.3016723965.

Adding to 52021133 its reverse (33112025), we get a palindrome (85133158).

The spelling of 52021133 in words is "fifty-two million, twenty-one thousand, one hundred thirty-three".