5611527491 has 2 divisors, whose sum is σ = 5611527492. Its totient is φ = 5611527490.

The previous prime is 5611527479. The next prime is 5611527553. The reversal of 5611527491 is 1947251165.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5611527491 - 2¹⁸ = 5611265347 is a prime.

It is not a weakly prime, because it can be changed into another prime (5611527401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805763745 + 2805763746.

It is an arithmetic number, because the mean of its divisors is an integer number (2805763746).

Almost surely, 2^5611527491 is an apocalyptic number.

5611527491 is a deficient number, since it is larger than the sum of its proper divisors (1).

5611527491 is an equidigital number, since it uses as much as digits as its factorization.

5611527491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 41.

The square root of 5611527491 is about 74910.1294285359. The cubic root of 5611527491 is about 1777.0256570984.

The spelling of 5611527491 in words is "five billion, six hundred eleven million, five hundred twenty-seven thousand, four hundred ninety-one".