52253209 has 2 divisors, whose sum is σ = 52253210. Its totient is φ = 52253208.

The previous prime is 52253191. The next prime is 52253219. The reversal of 52253209 is 90235225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31047184 + 21206025 = 5572^2 + 4605^2 .

It is a cyclic number.

It is not a de Polignac number, because 52253209 - 2⁷ = 52253081 is a prime.

It is not a weakly prime, because it can be changed into another prime (52253219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26126604 + 26126605.

It is an arithmetic number, because the mean of its divisors is an integer number (26126605).

Almost surely, 2^52253209 is an apocalyptic number.

It is an amenable number.

52253209 is a deficient number, since it is larger than the sum of its proper divisors (1).

52253209 is an equidigital number, since it uses as much as digits as its factorization.

52253209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 52253209 is about 7228.6381151639. The cubic root of 52253209 is about 373.8559717847.

The spelling of 52253209 in words is "fifty-two million, two hundred fifty-three thousand, two hundred nine".