5555044409 has 2 divisors, whose sum is σ = 5555044410. Its totient is φ = 5555044408.

The previous prime is 5555044379. The next prime is 5555044471. The reversal of 5555044409 is 9044405555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3220222009 + 2334822400 = 56747^2 + 48320^2 .

It is a cyclic number.

It is not a de Polignac number, because 5555044409 - 2¹² = 5555040313 is a prime.

It is not a weakly prime, because it can be changed into another prime (5555044489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777522204 + 2777522205.

It is an arithmetic number, because the mean of its divisors is an integer number (2777522205).

Almost surely, 2^5555044409 is an apocalyptic number.

It is an amenable number.

5555044409 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555044409 is an equidigital number, since it uses as much as digits as its factorization.

5555044409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360000, while the sum is 41.

The square root of 5555044409 is about 74532.1702957857. The cubic root of 5555044409 is about 1771.0432962117.

The spelling of 5555044409 in words is "five billion, five hundred fifty-five million, forty-four thousand, four hundred nine".