20051683 has 2 divisors, whose sum is σ = 20051684. Its totient is φ = 20051682.

The previous prime is 20051677. The next prime is 20051711. The reversal of 20051683 is 38615002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20051683 - 2¹⁷ = 19920611 is a prime.

It is a super-2 number, since 2×20051683² = 804139982264978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20051623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10025841 + 10025842.

It is an arithmetic number, because the mean of its divisors is an integer number (10025842).

Almost surely, 2^20051683 is an apocalyptic number.

20051683 is a deficient number, since it is larger than the sum of its proper divisors (1).

20051683 is an equidigital number, since it uses as much as digits as its factorization.

20051683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 20051683 is about 4477.9105618581. The cubic root of 20051683 is about 271.6753759529.

Adding to 20051683 its reverse (38615002), we get a palindrome (58666685).

The spelling of 20051683 in words is "twenty million, fifty-one thousand, six hundred eighty-three".