5505801840 has 480 divisors, whose sum is σ = 23554492416. Its totient is φ = 1119191040.

The previous prime is 5505801827. The next prime is 5505801859. The reversal of 5505801840 is 481085055.

5505801840 is a `hidden beast` number, since 550 + 58 + 0 + 18 + 40 = 666.

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 = 5505801795 and 5505801804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2604624 + ... + 2606736.

Almost surely, 2^5505801840 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 5505801840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11777246208).

5505801840 is an abundant number, since it is smaller than the sum of its proper divisors (18048690576).

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

5505801840 is a wasteful number, since it uses less digits than its factorization.

5505801840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197 (or 2188 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 5505801840 is about 74201.0905580235. The cubic root of 5505801840 is about 1765.7946318511.

Adding to 5505801840 its reverse (481085055), we get a palindrome (5986886895).

The spelling of 5505801840 in words is "five billion, five hundred five million, eight hundred one thousand, eight hundred forty".