5506720820 has 24 divisors (see below), whose sum is σ = 11565509928. Its totient is φ = 2202422400.

The previous prime is 5506720819. The next prime is 5506720897. The reversal of 5506720820 is 280276055.

It can be written as a sum of positive squares in 4 ways, for example, as 1446737296 + 4059983524 = 38036^2 + 63718^2 .

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, 304430 + ... + 322010.

It is an arithmetic number, because the mean of its divisors is an integer number (481896247).

Almost surely, 2^5506720820 is an apocalyptic number.

It is an amenable number.

5506720820 is an abundant number, since it is smaller than the sum of its proper divisors (6058789108).

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

5506720820 is a wasteful number, since it uses less digits than its factorization.

5506720820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33251 (or 33249 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 5506720820 is about 74207.2827962323. The cubic root of 5506720820 is about 1765.8928700201.

Adding to 5506720820 its reverse (280276055), we get a palindrome (5786996875).

The spelling of 5506720820 in words is "five billion, five hundred six million, seven hundred twenty thousand, eight hundred twenty".