53303009 has 2 divisors, whose sum is σ = 53303010. Its totient is φ = 53303008.

The previous prime is 53302979. The next prime is 53303011. The reversal of 53303009 is 90030335.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44182609 + 9120400 = 6647^2 + 3020^2 .

It is a cyclic number.

It is not a de Polignac number, because 53303009 - 2¹⁶ = 53237473 is a prime.

Together with 53303011, 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 (53303039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26651504 + 26651505.

It is an arithmetic number, because the mean of its divisors is an integer number (26651505).

Almost surely, 2^53303009 is an apocalyptic number.

It is an amenable number.

53303009 is a deficient number, since it is larger than the sum of its proper divisors (1).

53303009 is an equidigital number, since it uses as much as digits as its factorization.

53303009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1215, while the sum is 23.

The square root of 53303009 is about 7300.8909730251. The cubic root of 53303009 is about 376.3430573016.

The spelling of 53303009 in words is "fifty-three million, three hundred three thousand, nine".