2543745455 has 8 divisors (see below), whose sum is σ = 3150962304. Its totient is φ = 1969351200.

The previous prime is 2543745443. The next prime is 2543745487. The reversal of 2543745455 is 5545473452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2543745455 - 2¹² = 2543741359 is a prime.

It is a Duffinian number.

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, 8205476 + ... + 8205785.

It is an arithmetic number, because the mean of its divisors is an integer number (393870288).

Almost surely, 2^2543745455 is an apocalyptic number.

2543745455 is a deficient number, since it is larger than the sum of its proper divisors (607216849).

2543745455 is a wasteful number, since it uses less digits than its factorization.

2543745455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16411297.

The product of its digits is 1680000, while the sum is 44.

The square root of 2543745455 is about 50435.5574471027. The cubic root of 2543745455 is about 1365.0793076956.

The spelling of 2543745455 in words is "two billion, five hundred forty-three million, seven hundred forty-five thousand, four hundred fifty-five".