5611688557 has 16 divisors (see below), whose sum is σ = 5945142528. Its totient is φ = 5285871360.

The previous prime is 5611688521. The next prime is 5611688567. The reversal of 5611688557 is 7558861165.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5611688557 - 2²⁷ = 5477470829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5611688567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1979413 + ... + 1982245.

It is an arithmetic number, because the mean of its divisors is an integer number (371571408).

Almost surely, 2^5611688557 is an apocalyptic number.

It is an amenable number.

5611688557 is a deficient number, since it is larger than the sum of its proper divisors (333453971).

5611688557 is a wasteful number, since it uses less digits than its factorization.

5611688557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4140.

The product of its digits is 2016000, while the sum is 52.

The square root of 5611688557 is about 74911.2044823737. The cubic root of 5611688557 is about 1777.0426587482.

The spelling of 5611688557 in words is "five billion, six hundred eleven million, six hundred eighty-eight thousand, five hundred fifty-seven".