5631105564509 has 8 divisors (see below), whose sum is σ = 5710617214848. Its totient is φ = 5551599478320.

The previous prime is 5631105564457. The next prime is 5631105564551. The reversal of 5631105564509 is 9054655011365.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5631105564509 is a prime.

It is a super-2 number, since 2×5631105564509² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5631105567509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668699 + ... + 3421895.

It is an arithmetic number, because the mean of its divisors is an integer number (713827151856).

Almost surely, 2^{5631105564509} is an apocalyptic number.

It is an amenable number.

5631105564509 is a deficient number, since it is larger than the sum of its proper divisors (79511650339).

5631105564509 is a wasteful number, since it uses less digits than its factorization.

5631105564509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782075.

The product of its (nonzero) digits is 2430000, while the sum is 50.

The spelling of 5631105564509 in words is "five trillion, six hundred thirty-one billion, one hundred five million, five hundred sixty-four thousand, five hundred nine".