5561657775 has 96 divisors (see below), whose sum is σ = 10623486720. Its totient is φ = 2850215040.

The previous prime is 5561657741. The next prime is 5561657779. The reversal of 5561657775 is 5777561655.

It is a happy number.

5561657775 is a `hidden beast` number, since 5 + 5 + 61 + 6 + 577 + 7 + 5 = 666.

It is not a de Polignac number, because 5561657775 - 2²⁶ = 5494548911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561657779) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2071584 + ... + 2074266.

It is an arithmetic number, because the mean of its divisors is an integer number (110661320).

Almost surely, 2^5561657775 is an apocalyptic number.

5561657775 is a deficient number, since it is larger than the sum of its proper divisors (5061828945).

5561657775 is a wasteful number, since it uses less digits than its factorization.

5561657775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822 (or 2811 counting only the distinct ones).

The product of its digits is 7717500, while the sum is 54.

The square root of 5561657775 is about 74576.5229479090. The cubic root of 5561657775 is about 1771.7458356057.

The spelling of 5561657775 in words is "five billion, five hundred sixty-one million, six hundred fifty-seven thousand, seven hundred seventy-five".