199704553 has 2 divisors, whose sum is σ = 199704554. Its totient is φ = 199704552.

The previous prime is 199704541. The next prime is 199704569. The reversal of 199704553 is 355407991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165971689 + 33732864 = 12883^2 + 5808^2 .

It is a cyclic number.

It is not a de Polignac number, because 199704553 - 2⁵ = 199704521 is a prime.

It is not a weakly prime, because it can be changed into another prime (199704523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99852276 + 99852277.

It is an arithmetic number, because the mean of its divisors is an integer number (99852277).

Almost surely, 2^199704553 is an apocalyptic number.

It is an amenable number.

199704553 is a deficient number, since it is larger than the sum of its proper divisors (1).

199704553 is an equidigital number, since it uses as much as digits as its factorization.

199704553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 199704553 is about 14131.6861343578. The cubic root of 199704553 is about 584.5154416396.

The spelling of 199704553 in words is "one hundred ninety-nine million, seven hundred four thousand, five hundred fifty-three".