198558053 has 2 divisors, whose sum is σ = 198558054. Its totient is φ = 198558052.

The previous prime is 198558043. The next prime is 198558067. The reversal of 198558053 is 350855891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194239969 + 4318084 = 13937^2 + 2078^2 .

It is a cyclic number.

It is not a de Polignac number, because 198558053 - 2¹⁴ = 198541669 is a prime.

It is a super-2 number, since 2×198558053² = 78850600822301618, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 198557995 and 198558013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198558043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99279026 + 99279027.

It is an arithmetic number, because the mean of its divisors is an integer number (99279027).

Almost surely, 2^198558053 is an apocalyptic number.

It is an amenable number.

198558053 is a deficient number, since it is larger than the sum of its proper divisors (1).

198558053 is an equidigital number, since it uses as much as digits as its factorization.

198558053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216000, while the sum is 44.

The square root of 198558053 is about 14091.0628768734. The cubic root of 198558053 is about 583.3947302633.

The spelling of 198558053 in words is "one hundred ninety-eight million, five hundred fifty-eight thousand, fifty-three".