5503120640 has 72 divisors (see below), whose sum is σ = 13195230048. Its totient is φ = 2198988800.

The previous prime is 5503120639. The next prime is 5503120657. The reversal of 5503120640 is 460213055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1855799 + ... + 1858761.

It is an arithmetic number, because the mean of its divisors is an integer number (183267084).

Almost surely, 2^5503120640 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 5503120640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6597615024).

5503120640 is an abundant number, since it is smaller than the sum of its proper divisors (7692109408).

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

5503120640 is a wasteful number, since it uses less digits than its factorization.

5503120640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4435 (or 4421 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 5503120640 is about 74183.0212380165. The cubic root of 5503120640 is about 1765.5079513980.

Adding to 5503120640 its reverse (460213055), we get a palindrome (5963333695).

The spelling of 5503120640 in words is "five billion, five hundred three million, one hundred twenty thousand, six hundred forty".