20262223 has 2 divisors, whose sum is σ = 20262224. Its totient is φ = 20262222.

The previous prime is 20262197. The next prime is 20262239. The reversal of 20262223 is 32226202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20262223 - 2⁵ = 20262191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20262223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20262293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10131111 + 10131112.

It is an arithmetic number, because the mean of its divisors is an integer number (10131112).

Almost surely, 2^20262223 is an apocalyptic number.

20262223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20262223 is an equidigital number, since it uses as much as digits as its factorization.

20262223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20262223 is about 4501.3579062323. The cubic root of 20262223 is about 272.6229190426.

Adding to 20262223 its reverse (32226202), we get a palindrome (52488425).

The spelling of 20262223 in words is "twenty million, two hundred sixty-two thousand, two hundred twenty-three".