2455555543 has 4 divisors (see below), whose sum is σ = 2806349200. Its totient is φ = 2104761888.

The previous prime is 2455555493. The next prime is 2455555567. The reversal of 2455555543 is 3455555542.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2455555543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2455555543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2455555343) 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, 175396818 + ... + 175396831.

It is an arithmetic number, because the mean of its divisors is an integer number (701587300).

Almost surely, 2^2455555543 is an apocalyptic number.

2455555543 is a deficient number, since it is larger than the sum of its proper divisors (350793657).

2455555543 is an equidigital number, since it uses as much as digits as its factorization.

2455555543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350793656.

The product of its digits is 1500000, while the sum is 43.

The square root of 2455555543 is about 49553.5623643750. The cubic root of 2455555543 is about 1349.1179502036.

Subtracting 2455555543 from its reverse (3455555542), we obtain a palindrome (999999999).

The spelling of 2455555543 in words is "two billion, four hundred fifty-five million, five hundred fifty-five thousand, five hundred forty-three".