2556804545 has 16 divisors (see below), whose sum is σ = 3206995200. Its totient is φ = 1953192384.

The previous prime is 2556804479. The next prime is 2556804563. The reversal of 2556804545 is 5454086552.

It is a happy number.

2556804545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2556804545 - 2²² = 2552610241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2556804496 and 2556804505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50327 + ... + 87443.

It is an arithmetic number, because the mean of its divisors is an integer number (200437200).

Almost surely, 2^2556804545 is an apocalyptic number.

It is an amenable number.

2556804545 is a deficient number, since it is larger than the sum of its proper divisors (650190655).

2556804545 is a wasteful number, since it uses less digits than its factorization.

2556804545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37744.

The product of its (nonzero) digits is 960000, while the sum is 44.

The square root of 2556804545 is about 50564.8548400962. The cubic root of 2556804545 is about 1367.4113379390.

The spelling of 2556804545 in words is "two billion, five hundred fifty-six million, eight hundred four thousand, five hundred forty-five".