5491769556 has 288 divisors, whose sum is σ = 17447512320. Its totient is φ = 1303142400.

The previous prime is 5491769551. The next prime is 5491769597. The reversal of 5491769556 is 6559671945.

It is a junction number, because it is equal to n+sod(n) for n = 5491769496 and 5491769505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5491769551) 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, 54373906 + ... + 54374006.

It is an arithmetic number, because the mean of its divisors is an integer number (60581640).

Almost surely, 2^5491769556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5491769556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8723756160).

5491769556 is an abundant number, since it is smaller than the sum of its proper divisors (11955742764).

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

5491769556 is a wasteful number, since it uses less digits than its factorization.

5491769556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 172 counting only the distinct ones).

The product of its digits is 10206000, while the sum is 57.

The square root of 5491769556 is about 74106.4744539909. The cubic root of 5491769556 is about 1764.2932331156.

The spelling of 5491769556 in words is "five billion, four hundred ninety-one million, seven hundred sixty-nine thousand, five hundred fifty-six".