20656050 has 24 divisors (see below), whose sum is σ = 51227376. Its totient is φ = 5508240.

The previous prime is 20655997. The next prime is 20656057. The reversal of 20656050 is 5065602.

It is a self number, because there is not a number n which added to its sum of digits gives 20656050.

It is not an unprimeable number, because it can be changed into a prime (20656057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68704 + ... + 69003.

It is an arithmetic number, because the mean of its divisors is an integer number (2134474).

Almost surely, 2^20656050 is an apocalyptic number.

20656050 is an abundant number, since it is smaller than the sum of its proper divisors (30571326).

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

20656050 is a wasteful number, since it uses less digits than its factorization.

20656050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137722 (or 137717 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 20656050 is about 4544.8927380082. The cubic root of 20656050 is about 274.3778774023.

The spelling of 20656050 in words is "twenty million, six hundred fifty-six thousand, fifty".