2455778 has 16 divisors (see below), whose sum is σ = 4105080. Its totient is φ = 1094016.

The previous prime is 2455771. The next prime is 2455781. The reversal of 2455778 is 8775542.

2455778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2122849 + 332929 = 1457^2 + 577^2 .

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2455771) 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, 875 + ... + 2382.

2^2455778 is an apocalyptic number.

2455778 is a deficient number, since it is larger than the sum of its proper divisors (1649302).

2455778 is a wasteful number, since it uses less digits than its factorization.

2455778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3301.

The product of its digits is 78400, while the sum is 38.

The square root of 2455778 is about 1567.0922117093. The cubic root of 2455778 is about 134.9158689344.

The spelling of 2455778 in words is "two million, four hundred fifty-five thousand, seven hundred seventy-eight".