2543145555 has 8 divisors (see below), whose sum is σ = 4069032912. Its totient is φ = 1356344288.

The previous prime is 2543145533. The next prime is 2543145557. The reversal of 2543145555 is 5555413452.

2543145555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2543145555 - 2⁶ = 2543145491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2543145557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84771504 + ... + 84771533.

It is an arithmetic number, because the mean of its divisors is an integer number (508629114).

Almost surely, 2^2543145555 is an apocalyptic number.

2543145555 is a deficient number, since it is larger than the sum of its proper divisors (1525887357).

2543145555 is a wasteful number, since it uses less digits than its factorization.

2543145555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169543045.

The product of its digits is 300000, while the sum is 39.

The square root of 2543145555 is about 50429.6099033098. The cubic root of 2543145555 is about 1364.9719888521.

The spelling of 2543145555 in words is "two billion, five hundred forty-three million, one hundred forty-five thousand, five hundred fifty-five".