198800053 has 2 divisors, whose sum is σ = 198800054. Its totient is φ = 198800052.

The previous prime is 198800047. The next prime is 198800081. The reversal of 198800053 is 350008891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154803364 + 43996689 = 12442^2 + 6633^2 .

It is an emirp because it is prime and its reverse (350008891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198800053 - 2²¹ = 196702901 is a prime.

It is a super-2 number, since 2×198800053² = 79042922145605618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 198799991 and 198800018.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198800033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99400026 + 99400027.

It is an arithmetic number, because the mean of its divisors is an integer number (99400027).

Almost surely, 2^198800053 is an apocalyptic number.

It is an amenable number.

198800053 is a deficient number, since it is larger than the sum of its proper divisors (1).

198800053 is an equidigital number, since it uses as much as digits as its factorization.

198800053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 198800053 is about 14099.6472650914. The cubic root of 198800053 is about 583.6316453697.

The spelling of 198800053 in words is "one hundred ninety-eight million, eight hundred thousand, fifty-three".