5520305640 has 64 divisors (see below), whose sum is σ = 16565938560. Its totient is φ = 1471635200.

The previous prime is 5520305639. The next prime is 5520305663. The reversal of 5520305640 is 465030255.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 5520305598 and 5520305607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637822 + ... + 646418.

It is an arithmetic number, because the mean of its divisors is an integer number (258842790).

Almost surely, 2^5520305640 is an apocalyptic number.

It is an amenable number.

5520305640 is an abundant number, since it is smaller than the sum of its proper divisors (11045632920).

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

5520305640 is a wasteful number, since it uses less digits than its factorization.

5520305640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13962 (or 13958 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 5520305640 is about 74298.7593436122. The cubic root of 5520305640 is about 1767.3438022960.

Adding to 5520305640 its reverse (465030255), we get a palindrome (5985335895).

The spelling of 5520305640 in words is "five billion, five hundred twenty million, three hundred five thousand, six hundred forty".