2455665 has 16 divisors (see below), whose sum is σ = 4056576. Its totient is φ = 1267200.

The previous prime is 2455657. The next prime is 2455679. The reversal of 2455665 is 5665542.

It is a happy number.

2455665 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 2455665 - 2³ = 2455657 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 2176 + ... + 3105.

It is an arithmetic number, because the mean of its divisors is an integer number (253536).

2^2455665 is an apocalyptic number.

It is an amenable number.

2455665 is a deficient number, since it is larger than the sum of its proper divisors (1600911).

2455665 is a wasteful number, since it uses less digits than its factorization.

2455665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320.

The product of its digits is 36000, while the sum is 33.

The square root of 2455665 is about 1567.0561572579. The cubic root of 2455665 is about 134.9137995662.

The spelling of 2455665 in words is "two million, four hundred fifty-five thousand, six hundred sixty-five".