2455663 has 4 divisors (see below), whose sum is σ = 2806480. Its totient is φ = 2104848.

The previous prime is 2455657. The next prime is 2455679. The reversal of 2455663 is 3665542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2455663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2455643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175398 + ... + 175411.

It is an arithmetic number, because the mean of its divisors is an integer number (701620).

2^2455663 is an apocalyptic number.

2455663 is a deficient number, since it is larger than the sum of its proper divisors (350817).

2455663 is an equidigital number, since it uses as much as digits as its factorization.

2455663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350816.

The product of its digits is 21600, while the sum is 31.

The square root of 2455663 is about 1567.0555191186. The cubic root of 2455663 is about 134.9137629396.

The spelling of 2455663 in words is "two million, four hundred fifty-five thousand, six hundred sixty-three".