63255665 has 8 divisors (see below), whose sum is σ = 82807488. Its totient is φ = 46004080.

The previous prime is 63255653. The next prime is 63255683. The reversal of 63255665 is 56655236.

63255665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63255665 - 2⁶ = 63255601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 574997 + ... + 575106.

It is an arithmetic number, because the mean of its divisors is an integer number (10350936).

Almost surely, 2^63255665 is an apocalyptic number.

It is an amenable number.

63255665 is a deficient number, since it is larger than the sum of its proper divisors (19551823).

63255665 is a wasteful number, since it uses less digits than its factorization.

63255665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150119.

The product of its digits is 162000, while the sum is 38.

The square root of 63255665 is about 7953.3430078175. The cubic root of 63255665 is about 398.4432512767.

The spelling of 63255665 in words is "sixty-three million, two hundred fifty-five thousand, six hundred sixty-five".