5555534989 has 2 divisors, whose sum is σ = 5555534990. Its totient is φ = 5555534988.

The previous prime is 5555534983. The next prime is 5555535053. The reversal of 5555534989 is 9894355555.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5525394889 + 30140100 = 74333^2 + 5490^2 .

It is a cyclic number.

It is not a de Polignac number, because 5555534989 - 2¹⁵ = 5555502221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5555534983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777767494 + 2777767495.

It is an arithmetic number, because the mean of its divisors is an integer number (2777767495).

Almost surely, 2^5555534989 is an apocalyptic number.

It is an amenable number.

5555534989 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555534989 is an equidigital number, since it uses as much as digits as its factorization.

5555534989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24300000, while the sum is 58.

The square root of 5555534989 is about 74535.4612852164. The cubic root of 5555534989 is about 1771.0954297790.

The spelling of 5555534989 in words is "five billion, five hundred fifty-five million, five hundred thirty-four thousand, nine hundred eighty-nine".