20794253 has 2 divisors, whose sum is σ = 20794254. Its totient is φ = 20794252.

The previous prime is 20794237. The next prime is 20794283. The reversal of 20794253 is 35249702.

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., 18550249 + 2244004 = 4307^2 + 1498^2 .

It is a cyclic number.

It is not a de Polignac number, because 20794253 - 2⁴ = 20794237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20794223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10397126 + 10397127.

It is an arithmetic number, because the mean of its divisors is an integer number (10397127).

Almost surely, 2^20794253 is an apocalyptic number.

It is an amenable number.

20794253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20794253 is an equidigital number, since it uses as much as digits as its factorization.

20794253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 20794253 is about 4560.0716003151. The cubic root of 20794253 is about 274.9884424895.

The spelling of 20794253 in words is "twenty million, seven hundred ninety-four thousand, two hundred fifty-three".