5511111049 has 2 divisors, whose sum is σ = 5511111050. Its totient is φ = 5511111048.

The previous prime is 5511111043. The next prime is 5511111071. The reversal of 5511111049 is 9401111155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3533708025 + 1977403024 = 59445^2 + 44468^2 .

It is a cyclic number.

It is not a de Polignac number, because 5511111049 - 2³ = 5511111041 is a prime.

It is not a weakly prime, because it can be changed into another prime (5511111041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2755555524 + 2755555525.

It is an arithmetic number, because the mean of its divisors is an integer number (2755555525).

Almost surely, 2^5511111049 is an apocalyptic number.

It is an amenable number.

5511111049 is a deficient number, since it is larger than the sum of its proper divisors (1).

5511111049 is an equidigital number, since it uses as much as digits as its factorization.

5511111049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 28.

The square root of 5511111049 is about 74236.8577527363. The cubic root of 5511111049 is about 1766.3620309468.

The spelling of 5511111049 in words is "five billion, five hundred eleven million, one hundred eleven thousand, forty-nine".