20855062 has 8 divisors (see below), whose sum is σ = 31333176. Its totient is φ = 10410672.

The previous prime is 20855059. The next prime is 20855117. The reversal of 20855062 is 26055802.

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

It is a super-2 number, since 2×20855062² = 869867222047688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20855062.

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 3 ways as a sum of consecutive naturals, for example, 6823 + ... + 9394.

It is an arithmetic number, because the mean of its divisors is an integer number (3916647).

Almost surely, 2^20855062 is an apocalyptic number.

20855062 is a deficient number, since it is larger than the sum of its proper divisors (10478114).

20855062 is a wasteful number, since it uses less digits than its factorization.

20855062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16862.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 20855062 is about 4566.7342817379. The cubic root of 20855062 is about 275.2562328048.

The spelling of 20855062 in words is "twenty million, eight hundred fifty-five thousand, sixty-two".