20675273 has 2 divisors, whose sum is σ = 20675274. Its totient is φ = 20675272.

The previous prime is 20675261. The next prime is 20675309. The reversal of 20675273 is 37257602.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20675209 + 64 = 4547^2 + 8^2 .

It is a cyclic number.

It is not a de Polignac number, because 20675273 - 2²⁰ = 19626697 is a prime.

It is not a weakly prime, because it can be changed into another prime (20675203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10337636 + 10337637.

It is an arithmetic number, because the mean of its divisors is an integer number (10337637).

Almost surely, 2^20675273 is an apocalyptic number.

It is an amenable number.

20675273 is a deficient number, since it is larger than the sum of its proper divisors (1).

20675273 is an equidigital number, since it uses as much as digits as its factorization.

20675273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 20675273 is about 4547.0070376018. The cubic root of 20675273 is about 274.4629651552.

The spelling of 20675273 in words is "twenty million, six hundred seventy-five thousand, two hundred seventy-three".