53532209 has 2 divisors, whose sum is σ = 53532210. Its totient is φ = 53532208.

The previous prime is 53532187. The next prime is 53532211. The reversal of 53532209 is 90223535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52243984 + 1288225 = 7228^2 + 1135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53532209 is a prime.

Together with 53532211, 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 (53531209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26766104 + 26766105.

It is an arithmetic number, because the mean of its divisors is an integer number (26766105).

Almost surely, 2^53532209 is an apocalyptic number.

It is an amenable number.

53532209 is a deficient number, since it is larger than the sum of its proper divisors (1).

53532209 is an equidigital number, since it uses as much as digits as its factorization.

53532209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 53532209 is about 7316.5708497902. The cubic root of 53532209 is about 376.8817041198.

The spelling of 53532209 in words is "fifty-three million, five hundred thirty-two thousand, two hundred nine".