5540565321 has 10 divisors (see below), whose sum is σ = 8276647082. Its totient is φ = 3693710160.

The previous prime is 5540565313. The next prime is 5540565323. The reversal of 5540565321 is 1235650455.

5540565321 is a `hidden beast` number, since 55 + 40 + 565 + 3 + 2 + 1 = 666.

5540565321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4087812096 + 1452753225 = 63936^2 + 38115^2 .

It is not a de Polignac number, because 5540565321 - 2³ = 5540565313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5540565323) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 34200940 + ... + 34201101.

Almost surely, 2^5540565321 is an apocalyptic number.

It is an amenable number.

5540565321 is a deficient number, since it is larger than the sum of its proper divisors (2736081761).

5540565321 is an equidigital number, since it uses as much as digits as its factorization.

5540565321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68402053 (or 68402044 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 5540565321 is about 74434.9737757729. The cubic root of 5540565321 is about 1769.5032303106.

The spelling of 5540565321 in words is "five billion, five hundred forty million, five hundred sixty-five thousand, three hundred twenty-one".