20255982 has 16 divisors (see below), whose sum is σ = 40696320. Its totient is φ = 6721272.

The previous prime is 20255981. The next prime is 20255999. The reversal of 20255982 is 28955202.

It is a super-3 number, since 3×20255982³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20255981) 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, 6232 + ... + 8907.

It is an arithmetic number, because the mean of its divisors is an integer number (2543520).

Almost surely, 2^20255982 is an apocalyptic number.

20255982 is an abundant number, since it is smaller than the sum of its proper divisors (20440338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20255982 is a wasteful number, since it uses less digits than its factorization.

20255982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15367.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 20255982 is about 4500.6646175871. The cubic root of 20255982 is about 272.5949258266.

The spelling of 20255982 in words is "twenty million, two hundred fifty-five thousand, nine hundred eighty-two".