52021369 has 2 divisors, whose sum is σ = 52021370. Its totient is φ = 52021368.

The previous prime is 52021313. The next prime is 52021381. The reversal of 52021369 is 96312025.

52021369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51667344 + 354025 = 7188^2 + 595^2 .

It is a cyclic number.

It is not a de Polignac number, because 52021369 - 2¹³ = 52013177 is a prime.

It is a super-2 number, since 2×52021369² = 5412445665268322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52021399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26010684 + 26010685.

It is an arithmetic number, because the mean of its divisors is an integer number (26010685).

Almost surely, 2^52021369 is an apocalyptic number.

It is an amenable number.

52021369 is a deficient number, since it is larger than the sum of its proper divisors (1).

52021369 is an equidigital number, since it uses as much as digits as its factorization.

52021369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 52021369 is about 7212.5840723003. The cubic root of 52021369 is about 373.3022369047.

The spelling of 52021369 in words is "fifty-two million, twenty-one thousand, three hundred sixty-nine".