5509180440 has 64 divisors (see below), whose sum is σ = 18363938400. Its totient is φ = 1469114496.

The previous prime is 5509180433. The next prime is 5509180447. The reversal of 5509180440 is 440819055.

5509180440 is a `hidden beast` number, since 5 + 50 + 91 + 80 + 440 = 666.

It is an interprime number because it is at equal distance from previous prime (5509180433) and next prime (5509180447).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5509180395 and 5509180404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5509180447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2549467 + ... + 2551626.

Almost surely, 2^5509180440 is an apocalyptic number.

It is an amenable number.

5509180440 is an abundant number, since it is smaller than the sum of its proper divisors (12854757960).

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

5509180440 is a wasteful number, since it uses less digits than its factorization.

5509180440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101113 (or 5101103 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 5509180440 is about 74223.8535782130. The cubic root of 5509180440 is about 1766.1557475140.

Adding to 5509180440 its reverse (440819055), we get a palindrome (5949999495).

It can be divided in two parts, 55091 and 80440, that added together give a palindrome (135531).

The spelling of 5509180440 in words is "five billion, five hundred nine million, one hundred eighty thousand, four hundred forty".