20550950 has 48 divisors (see below), whose sum is σ = 44354304. Its totient is φ = 6938400.

The previous prime is 20550941. The next prime is 20550997. The reversal of 20550950 is 5905502.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24437 + ... + 25263.

It is an arithmetic number, because the mean of its divisors is an integer number (924048).

Almost surely, 2^20550950 is an apocalyptic number.

20550950 is an abundant number, since it is smaller than the sum of its proper divisors (23803354).

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

20550950 is a wasteful number, since it uses less digits than its factorization.

20550950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 20550950 is about 4533.3155636907. The cubic root of 20550950 is about 273.9117320950.

The spelling of 20550950 in words is "twenty million, five hundred fifty thousand, nine hundred fifty".