2168289553 has 2 divisors, whose sum is σ = 2168289554. Its totient is φ = 2168289552.

The previous prime is 2168289509. The next prime is 2168289559. The reversal of 2168289553 is 3559828612.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1480171729 + 688117824 = 38473^2 + 26232^2 .

It is a cyclic number.

It is not a de Polignac number, because 2168289553 - 2¹⁷ = 2168158481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2168289497 and 2168289506.

It is not a weakly prime, because it can be changed into another prime (2168289559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1084144776 + 1084144777.

It is an arithmetic number, because the mean of its divisors is an integer number (1084144777).

Almost surely, 2^2168289553 is an apocalyptic number.

It is an amenable number.

2168289553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2168289553 is an equidigital number, since it uses as much as digits as its factorization.

2168289553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 49.

The square root of 2168289553 is about 46564.8961450576. The cubic root of 2168289553 is about 1294.3123420366.

The spelling of 2168289553 in words is "two billion, one hundred sixty-eight million, two hundred eighty-nine thousand, five hundred fifty-three".