45533209 has 2 divisors, whose sum is σ = 45533210. Its totient is φ = 45533208.

The previous prime is 45533207. The next prime is 45533233. The reversal of 45533209 is 90233554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43494025 + 2039184 = 6595^2 + 1428^2 .

It is a cyclic number.

It is not a de Polignac number, because 45533209 - 2¹ = 45533207 is a prime.

Together with 45533207, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45533207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22766604 + 22766605.

It is an arithmetic number, because the mean of its divisors is an integer number (22766605).

Almost surely, 2^45533209 is an apocalyptic number.

It is an amenable number.

45533209 is a deficient number, since it is larger than the sum of its proper divisors (1).

45533209 is an equidigital number, since it uses as much as digits as its factorization.

45533209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 45533209 is about 6747.8299474720. The cubic root of 45533209 is about 357.0886827314.

The spelling of 45533209 in words is "forty-five million, five hundred thirty-three thousand, two hundred nine".