5509791 has 24 divisors (see below), whose sum is σ = 9576320. Its totient is φ = 2982096.

The previous prime is 5509783. The next prime is 5509859. The reversal of 5509791 is 1979055.

It is a happy number.

It is not a de Polignac number, because 5509791 - 2³ = 5509783 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5509711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1105 + ... + 3498.

Almost surely, 2^5509791 is an apocalyptic number.

5509791 is a deficient number, since it is larger than the sum of its proper divisors (4066529).

5509791 is a wasteful number, since it uses less digits than its factorization.

5509791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4635 (or 4632 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 36.

The square root of 5509791 is about 2347.2943999422. The cubic root of 5509791 is about 176.6220990383.

It can be divided in two parts, 5 and 509791, that added together give a square (509796 = 714²).

The spelling of 5509791 in words is "five million, five hundred nine thousand, seven hundred ninety-one".