52823209 has 2 divisors, whose sum is σ = 52823210. Its totient is φ = 52823208.

The previous prime is 52823171. The next prime is 52823257. The reversal of 52823209 is 90232825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35141184 + 17682025 = 5928^2 + 4205^2 .

It is a cyclic number.

It is not a de Polignac number, because 52823209 - 2⁷ = 52823081 is a prime.

It is not a weakly prime, because it can be changed into another prime (52823279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26411604 + 26411605.

It is an arithmetic number, because the mean of its divisors is an integer number (26411605).

Almost surely, 2^52823209 is an apocalyptic number.

It is an amenable number.

52823209 is a deficient number, since it is larger than the sum of its proper divisors (1).

52823209 is an equidigital number, since it uses as much as digits as its factorization.

52823209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 52823209 is about 7267.9576911262. The cubic root of 52823209 is about 375.2104513533.

The spelling of 52823209 in words is "fifty-two million, eight hundred twenty-three thousand, two hundred nine".