2455857 has 12 divisors (see below), whose sum is σ = 3576144. Its totient is φ = 1623960.

The previous prime is 2455847. The next prime is 2455889. The reversal of 2455857 is 7585542.

It is a happy number.

2455857 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 2455857 - 2⁷ = 2455729 is a prime.

2455857 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2455847) 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 11 ways as a sum of consecutive naturals, for example, 138 + ... + 2220.

It is an arithmetic number, because the mean of its divisors is an integer number (298012).

2^2455857 is an apocalyptic number.

It is an amenable number.

2455857 is a deficient number, since it is larger than the sum of its proper divisors (1120287).

2455857 is a wasteful number, since it uses less digits than its factorization.

2455857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220 (or 2217 counting only the distinct ones).

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

The square root of 2455857 is about 1567.1174174260. The cubic root of 2455857 is about 134.9173156232.

The spelling of 2455857 in words is "two million, four hundred fifty-five thousand, eight hundred fifty-seven".