2055320243 has 4 divisors (see below), whose sum is σ = 2121620928. Its totient is φ = 1989019560.

The previous prime is 2055320237. The next prime is 2055320263. The reversal of 2055320243 is 3420235502.

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

It is a cyclic number.

It is not a de Polignac number, because 2055320243 - 2¹⁰ = 2055319219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2055320233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33150296 + ... + 33150357.

It is an arithmetic number, because the mean of its divisors is an integer number (530405232).

Almost surely, 2^2055320243 is an apocalyptic number.

2055320243 is a deficient number, since it is larger than the sum of its proper divisors (66300685).

2055320243 is an equidigital number, since it uses as much as digits as its factorization.

2055320243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66300684.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 2055320243 is about 45335.6398763710. The cubic root of 2055320243 is about 1271.4320842924.

Adding to 2055320243 its reverse (3420235502), we get a palindrome (5475555745).

The spelling of 2055320243 in words is "two billion, fifty-five million, three hundred twenty thousand, two hundred forty-three".