2547855 has 32 divisors (see below), whose sum is σ = 4605120. Its totient is φ = 1353024.

The previous prime is 2547847. The next prime is 2547887. The reversal of 2547855 is 5587452.

It is a happy number.

2547855 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 2547855 - 2³ = 2547847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10819 + ... + 11051.

It is an arithmetic number, because the mean of its divisors is an integer number (143910).

2^2547855 is an apocalyptic number.

2547855 is a deficient number, since it is larger than the sum of its proper divisors (2057265).

2547855 is an frugal number, since it uses more digits than its factorization.

2547855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 241 counting only the distinct ones).

The product of its digits is 56000, while the sum is 36.

The square root of 2547855 is about 1596.2001754166. The cubic root of 2547855 is about 136.5814029605.

The spelling of 2547855 in words is "two million, five hundred forty-seven thousand, eight hundred fifty-five".