535493209 has 2 divisors, whose sum is σ = 535493210. Its totient is φ = 535493208.

The previous prime is 535493177. The next prime is 535493219. The reversal of 535493209 is 902394535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 494083984 + 41409225 = 22228^2 + 6435^2 .

It is a cyclic number.

It is not a de Polignac number, because 535493209 - 2⁵ = 535493177 is a prime.

It is not a weakly prime, because it can be changed into another prime (535493219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267746604 + 267746605.

It is an arithmetic number, because the mean of its divisors is an integer number (267746605).

Almost surely, 2^535493209 is an apocalyptic number.

It is an amenable number.

535493209 is a deficient number, since it is larger than the sum of its proper divisors (1).

535493209 is an equidigital number, since it uses as much as digits as its factorization.

535493209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 40.

The square root of 535493209 is about 23140.7261986308. The cubic root of 535493209 is about 812.0535249283.

The spelling of 535493209 in words is "five hundred thirty-five million, four hundred ninety-three thousand, two hundred nine".