53345273 has 2 divisors, whose sum is σ = 53345274. Its totient is φ = 53345272.

The previous prime is 53345267. The next prime is 53345291. The reversal of 53345273 is 37254335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52027369 + 1317904 = 7213^2 + 1148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53345273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (53245273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26672636 + 26672637.

It is an arithmetic number, because the mean of its divisors is an integer number (26672637).

Almost surely, 2^53345273 is an apocalyptic number.

It is an amenable number.

53345273 is a deficient number, since it is larger than the sum of its proper divisors (1).

53345273 is an equidigital number, since it uses as much as digits as its factorization.

53345273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 32.

The square root of 53345273 is about 7303.7848407521. The cubic root of 53345273 is about 376.4424985978.

The spelling of 53345273 in words is "fifty-three million, three hundred forty-five thousand, two hundred seventy-three".