20198053 has 2 divisors, whose sum is σ = 20198054. Its totient is φ = 20198052.

The previous prime is 20198039. The next prime is 20198077. The reversal of 20198053 is 35089102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13557124 + 6640929 = 3682^2 + 2577^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20198053 is a prime.

It is a super-2 number, since 2×20198053² = 815922689981618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20198033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10099026 + 10099027.

It is an arithmetic number, because the mean of its divisors is an integer number (10099027).

Almost surely, 2^20198053 is an apocalyptic number.

It is an amenable number.

20198053 is a deficient number, since it is larger than the sum of its proper divisors (1).

20198053 is an equidigital number, since it uses as much as digits as its factorization.

20198053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 20198053 is about 4494.2244047221. The cubic root of 20198053 is about 272.3348178274.

The spelling of 20198053 in words is "twenty million, one hundred ninety-eight thousand, fifty-three".