20200855 has 8 divisors (see below), whose sum is σ = 24426864. Its totient is φ = 16036800.

The previous prime is 20200847. The next prime is 20200883. The reversal of 20200855 is 55800202.

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

It is not a de Polignac number, because 20200855 - 2³ = 20200847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14766 + ... + 16075.

It is an arithmetic number, because the mean of its divisors is an integer number (3053358).

Almost surely, 2^20200855 is an apocalyptic number.

20200855 is a deficient number, since it is larger than the sum of its proper divisors (4226009).

20200855 is a wasteful number, since it uses less digits than its factorization.

20200855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30977.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 20200855 is about 4494.5361273440. The cubic root of 20200855 is about 272.3474105738.

The spelling of 20200855 in words is "twenty million, two hundred thousand, eight hundred fifty-five".