194008553 has 2 divisors, whose sum is σ = 194008554. Its totient is φ = 194008552.

The previous prime is 194008547. The next prime is 194008559. The reversal of 194008553 is 355800491.

194008553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (194008547) and next prime (194008559).

It can be written as a sum of positive squares in only one way, i.e., 130599184 + 63409369 = 11428^2 + 7963^2 .

It is an emirp because it is prime and its reverse (355800491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194008553 - 2¹² = 194004457 is a prime.

It is not a weakly prime, because it can be changed into another prime (194008559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97004276 + 97004277.

It is an arithmetic number, because the mean of its divisors is an integer number (97004277).

Almost surely, 2^194008553 is an apocalyptic number.

It is an amenable number.

194008553 is a deficient number, since it is larger than the sum of its proper divisors (1).

194008553 is an equidigital number, since it uses as much as digits as its factorization.

194008553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 194008553 is about 13928.6953086066. The cubic root of 194008553 is about 578.9045444658.

The spelling of 194008553 in words is "one hundred ninety-four million, eight thousand, five hundred fifty-three".