5511541531 has 2 divisors, whose sum is σ = 5511541532. Its totient is φ = 5511541530.

The previous prime is 5511541501. The next prime is 5511541549. The reversal of 5511541531 is 1351451155.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5511541531 is a prime.

It is a super-2 number, since 2×5511541531² = 60754180095875647922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5511541493 and 5511541502.

It is not a weakly prime, because it can be changed into another prime (5511541501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2755770765 + 2755770766.

It is an arithmetic number, because the mean of its divisors is an integer number (2755770766).

Almost surely, 2^5511541531 is an apocalyptic number.

5511541531 is a deficient number, since it is larger than the sum of its proper divisors (1).

5511541531 is an equidigital number, since it uses as much as digits as its factorization.

5511541531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7500, while the sum is 31.

The square root of 5511541531 is about 74239.7570779970. The cubic root of 5511541531 is about 1766.4080209027.

Adding to 5511541531 its reverse (1351451155), we get a palindrome (6862992686).

The spelling of 5511541531 in words is "five billion, five hundred eleven million, five hundred forty-one thousand, five hundred thirty-one".