5555355389 has 2 divisors, whose sum is σ = 5555355390. Its totient is φ = 5555355388.

The previous prime is 5555355313. The next prime is 5555355427. The reversal of 5555355389 is 9835535555.

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., 5394902500 + 160452889 = 73450^2 + 12667^2 .

It is a cyclic number.

It is not a de Polignac number, because 5555355389 - 2²⁴ = 5538578173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5555355389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5555325389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777677694 + 2777677695.

It is an arithmetic number, because the mean of its divisors is an integer number (2777677695).

Almost surely, 2^5555355389 is an apocalyptic number.

It is an amenable number.

5555355389 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555355389 is an equidigital number, since it uses as much as digits as its factorization.

5555355389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10125000, while the sum is 53.

The square root of 5555355389 is about 74534.2564798228. The cubic root of 5555355389 is about 1771.0763441783.

The spelling of 5555355389 in words is "five billion, five hundred fifty-five million, three hundred fifty-five thousand, three hundred eighty-nine".