5591289756 has 48 divisors (see below), whose sum is σ = 14055200768. Its totient is φ = 1719748800.

The previous prime is 5591289721. The next prime is 5591289763. The reversal of 5591289756 is 6579821955.

It is a happy number.

It is a super-2 number, since 2×5591289756² = 62525042271101079072, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5591289696 and 5591289705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561501 + ... + 571371.

Almost surely, 2^5591289756 is an apocalyptic number.

It is an amenable number.

5591289756 is an abundant number, since it is smaller than the sum of its proper divisors (8463911012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5591289756 is a wasteful number, since it uses less digits than its factorization.

5591289756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13522 (or 13520 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 57.

The square root of 5591289756 is about 74774.9273219306. The cubic root of 5591289756 is about 1774.8868280420.

The spelling of 5591289756 in words is "five billion, five hundred ninety-one million, two hundred eighty-nine thousand, seven hundred fifty-six".