20255708 has 24 divisors (see below), whose sum is σ = 39252864. Its totient is φ = 9068400.

The previous prime is 20255689. The next prime is 20255723. The reversal of 20255708 is 80755202.

It is a congruent 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, 488 + ... + 6383.

It is an arithmetic number, because the mean of its divisors is an integer number (1635536).

Almost surely, 2^20255708 is an apocalyptic number.

It is an amenable number.

20255708 is a deficient number, since it is larger than the sum of its proper divisors (18997156).

20255708 is a wasteful number, since it uses less digits than its factorization.

20255708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6953 (or 6951 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 20255708 is about 4500.6341775354. The cubic root of 20255708 is about 272.5936967025.

The spelling of 20255708 in words is "twenty million, two hundred fifty-five thousand, seven hundred eight".