5547979889 has 2 divisors, whose sum is σ = 5547979890. Its totient is φ = 5547979888.

The previous prime is 5547979861. The next prime is 5547979907. The reversal of 5547979889 is 9889797455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5271921664 + 276058225 = 72608^2 + 16615^2 .

It is a cyclic number.

It is not a de Polignac number, because 5547979889 - 2¹² = 5547975793 is a prime.

It is not a weakly prime, because it can be changed into another prime (5547979819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2773989944 + 2773989945.

It is an arithmetic number, because the mean of its divisors is an integer number (2773989945).

Almost surely, 2^5547979889 is an apocalyptic number.

It is an amenable number.

5547979889 is a deficient number, since it is larger than the sum of its proper divisors (1).

5547979889 is an equidigital number, since it uses as much as digits as its factorization.

5547979889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 228614400, while the sum is 71.

The square root of 5547979889 is about 74484.7627975011. The cubic root of 5547979889 is about 1770.2922144082.

The spelling of 5547979889 in words is "five billion, five hundred forty-seven million, nine hundred seventy-nine thousand, eight hundred eighty-nine".