2556516143 has 4 divisors (see below), whose sum is σ = 2556618720. Its totient is φ = 2556413568.

The previous prime is 2556516133. The next prime is 2556516163. The reversal of 2556516143 is 3416156552.

2556516143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2556516143 - 2¹⁰ = 2556515119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2556516097 and 2556516106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556516103) 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, 12746 + ... + 72632.

It is an arithmetic number, because the mean of its divisors is an integer number (639154680).

Almost surely, 2^2556516143 is an apocalyptic number.

2556516143 is a deficient number, since it is larger than the sum of its proper divisors (102577).

2556516143 is an equidigital number, since it uses as much as digits as its factorization.

2556516143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102576.

The product of its digits is 108000, while the sum is 38.

The square root of 2556516143 is about 50562.0029567659. The cubic root of 2556516143 is about 1367.3599223293.

The spelling of 2556516143 in words is "two billion, five hundred fifty-six million, five hundred sixteen thousand, one hundred forty-three".