5549945911 has 2 divisors, whose sum is σ = 5549945912. Its totient is φ = 5549945910.

The previous prime is 5549945873. The next prime is 5549945939. The reversal of 5549945911 is 1195499455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5549945911 - 2⁹ = 5549945399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5549945941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2774972955 + 2774972956.

It is an arithmetic number, because the mean of its divisors is an integer number (2774972956).

Almost surely, 2^5549945911 is an apocalyptic number.

5549945911 is a deficient number, since it is larger than the sum of its proper divisors (1).

5549945911 is an equidigital number, since it uses as much as digits as its factorization.

5549945911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458000, while the sum is 52.

The square root of 5549945911 is about 74497.9591062735. The cubic root of 5549945911 is about 1770.5013008669.

The spelling of 5549945911 in words is "five billion, five hundred forty-nine million, nine hundred forty-five thousand, nine hundred eleven".