20914255 has 8 divisors (see below), whose sum is σ = 25264224. Its totient is φ = 16620000.

The previous prime is 20914219. The next prime is 20914259. The reversal of 20914255 is 55241902.

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

It is not a de Polignac number, because 20914255 - 2¹¹ = 20912207 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 (20914259) 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 7 ways as a sum of consecutive naturals, for example, 13096 + ... + 14605.

It is an arithmetic number, because the mean of its divisors is an integer number (3158028).

Almost surely, 2^20914255 is an apocalyptic number.

20914255 is a deficient number, since it is larger than the sum of its proper divisors (4349969).

20914255 is a wasteful number, since it uses less digits than its factorization.

20914255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27857.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 20914255 is about 4573.2105790134. The cubic root of 20914255 is about 275.5164070716.

The spelling of 20914255 in words is "twenty million, nine hundred fourteen thousand, two hundred fifty-five".