2455881 has 8 divisors (see below), whose sum is σ = 3281760. Its totient is φ = 1633632.

The previous prime is 2455847. The next prime is 2455889. The reversal of 2455881 is 1885542.

2455881 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 not a de Polignac number, because 2455881 - 2¹¹ = 2453833 is a prime.

It is a super-2 number, since 2×2455881² = 12062702972322, which contains 22 as substring.

It is a Curzon number.

2455881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2455889) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2101 + ... + 3053.

It is an arithmetic number, because the mean of its divisors is an integer number (410220).

2^2455881 is an apocalyptic number.

It is an amenable number.

2455881 is a deficient number, since it is larger than the sum of its proper divisors (825879).

2455881 is an equidigital number, since it uses as much as digits as its factorization.

2455881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815.

The product of its digits is 12800, while the sum is 33.

The square root of 2455881 is about 1567.1250747787. The cubic root of 2455881 is about 134.9177551175.

The spelling of 2455881 in words is "two million, four hundred fifty-five thousand, eight hundred eighty-one".