5500491640 has 64 divisors (see below), whose sum is σ = 14888563200. Its totient is φ = 1786624128.

The previous prime is 5500491611. The next prime is 5500491649. The reversal of 5500491640 is 461940055.

It is a junction number, because it is equal to n+sod(n) for n = 5500491596 and 5500491605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5500491649) 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, 511644 + ... + 522283.

It is an arithmetic number, because the mean of its divisors is an integer number (232633800).

Almost surely, 2^5500491640 is an apocalyptic number.

It is an amenable number.

5500491640 is an abundant number, since it is smaller than the sum of its proper divisors (9388071560).

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

5500491640 is a wasteful number, since it uses less digits than its factorization.

5500491640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033964 (or 1033960 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 5500491640 is about 74165.2994330907. The cubic root of 5500491640 is about 1765.2267618673.

The spelling of 5500491640 in words is "five billion, five hundred million, four hundred ninety-one thousand, six hundred forty".