2553984663 has 4 divisors (see below), whose sum is σ = 3405312888. Its totient is φ = 1702656440.

The previous prime is 2553984659. The next prime is 2553984679. The reversal of 2553984663 is 3664893552.

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

It is a cyclic number.

It is not a de Polignac number, because 2553984663 - 2² = 2553984659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553984623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425664108 + ... + 425664113.

It is an arithmetic number, because the mean of its divisors is an integer number (851328222).

Almost surely, 2^2553984663 is an apocalyptic number.

2553984663 is a deficient number, since it is larger than the sum of its proper divisors (851328225).

2553984663 is an equidigital number, since it uses as much as digits as its factorization.

2553984663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851328224.

The product of its digits is 4665600, while the sum is 51.

The square root of 2553984663 is about 50536.9633337817. The cubic root of 2553984663 is about 1366.9084501895.

The spelling of 2553984663 in words is "two billion, five hundred fifty-three million, nine hundred eighty-four thousand, six hundred sixty-three".