5111045509 has 2 divisors, whose sum is σ = 5111045510. Its totient is φ = 5111045508.

The previous prime is 5111045501. The next prime is 5111045551. The reversal of 5111045509 is 9055401115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5090822500 + 20223009 = 71350^2 + 4497^2 .

It is a cyclic number.

It is not a de Polignac number, because 5111045509 - 2³ = 5111045501 is a prime.

It is a super-2 number, since 2×5111045509² = 52245572390138138162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5111045501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555522754 + 2555522755.

It is an arithmetic number, because the mean of its divisors is an integer number (2555522755).

Almost surely, 2^5111045509 is an apocalyptic number.

It is an amenable number.

5111045509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5111045509 is an equidigital number, since it uses as much as digits as its factorization.

5111045509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 31.

The square root of 5111045509 is about 71491.5764898215. The cubic root of 5111045509 is about 1722.5423810020.

The spelling of 5111045509 in words is "five billion, one hundred eleven million, forty-five thousand, five hundred nine".