7985555273 has 2 divisors, whose sum is σ = 7985555274. Its totient is φ = 7985555272.

The previous prime is 7985555189. The next prime is 7985555287. The reversal of 7985555273 is 3725555897.

It is a happy number.

7985555273 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4693894144 + 3291661129 = 68512^2 + 57373^2 .

It is a cyclic number.

It is not a de Polignac number, because 7985555273 - 2²⁰ = 7984506697 is a prime.

It is not a weakly prime, because it can be changed into another prime (7985555293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3992777636 + 3992777637.

It is an arithmetic number, because the mean of its divisors is an integer number (3992777637).

Almost surely, 2^7985555273 is an apocalyptic number.

It is an amenable number.

7985555273 is a deficient number, since it is larger than the sum of its proper divisors (1).

7985555273 is an equidigital number, since it uses as much as digits as its factorization.

7985555273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13230000, while the sum is 56.

The square root of 7985555273 is about 89361.9341386476. The cubic root of 7985555273 is about 1998.7955475427.

The spelling of 7985555273 in words is "seven billion, nine hundred eighty-five million, five hundred fifty-five thousand, two hundred seventy-three".