5541205511 has 2 divisors, whose sum is σ = 5541205512. Its totient is φ = 5541205510.

The previous prime is 5541205499. The next prime is 5541205547. The reversal of 5541205511 is 1155021455.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5541205511 is a prime.

It is a super-2 number, since 2×5541205511² = 61409917030273542242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5541205561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2770602755 + 2770602756.

It is an arithmetic number, because the mean of its divisors is an integer number (2770602756).

Almost surely, 2^5541205511 is an apocalyptic number.

5541205511 is a deficient number, since it is larger than the sum of its proper divisors (1).

5541205511 is an equidigital number, since it uses as much as digits as its factorization.

5541205511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5000, while the sum is 29.

The square root of 5541205511 is about 74439.2739822199. The cubic root of 5541205511 is about 1769.5713806755.

Adding to 5541205511 its reverse (1155021455), we get a palindrome (6696226966).

The spelling of 5541205511 in words is "five billion, five hundred forty-one million, two hundred five thousand, five hundred eleven".