20282556 has 48 divisors (see below), whose sum is σ = 55838720. Its totient is φ = 5607360.

The previous prime is 20282551. The next prime is 20282567. The reversal of 20282556 is 65528202.

It is a super-2 number, since 2×20282556² = 822764155786272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20282551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1291 + ... + 6498.

Almost surely, 2^20282556 is an apocalyptic number.

It is an amenable number.

20282556 is an abundant number, since it is smaller than the sum of its proper divisors (35556164).

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

20282556 is a wasteful number, since it uses less digits than its factorization.

20282556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7834 (or 7832 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 20282556 is about 4503.6158806008. The cubic root of 20282556 is about 272.7140802912.

The spelling of 20282556 in words is "twenty million, two hundred eighty-two thousand, five hundred fifty-six".