2320540555 has 4 divisors (see below), whose sum is σ = 2784648672. Its totient is φ = 1856432440.

The previous prime is 2320540543. The next prime is 2320540561. The reversal of 2320540555 is 5550450232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2320540555 - 2⁹ = 2320540043 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232054051 + ... + 232054060.

It is an arithmetic number, because the mean of its divisors is an integer number (696162168).

Almost surely, 2^2320540555 is an apocalyptic number.

2320540555 is a deficient number, since it is larger than the sum of its proper divisors (464108117).

2320540555 is an equidigital number, since it uses as much as digits as its factorization.

2320540555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464108116.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 2320540555 is about 48171.9893195205. The cubic root of 2320540555 is about 1323.9239974490.

Adding to 2320540555 its reverse (5550450232), we get a palindrome (7870990787).

The spelling of 2320540555 in words is "two billion, three hundred twenty million, five hundred forty thousand, five hundred fifty-five".