201725855 has 4 divisors (see below), whose sum is σ = 242071032. Its totient is φ = 161380680.

The previous prime is 201725761. The next prime is 201725861. The reversal of 201725855 is 558527102.

201725855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 201725855 - 2¹² = 201721759 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 3 ways as a sum of consecutive naturals, for example, 20172581 + ... + 20172590.

It is an arithmetic number, because the mean of its divisors is an integer number (60517758).

Almost surely, 2^201725855 is an apocalyptic number.

201725855 is a deficient number, since it is larger than the sum of its proper divisors (40345177).

201725855 is an equidigital number, since it uses as much as digits as its factorization.

201725855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40345176.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 201725855 is about 14203.0227416561. The cubic root of 201725855 is about 586.4808756910.

It can be divided in two parts, 2017 and 25855, that added together give a palindrome (27872).

The spelling of 201725855 in words is "two hundred one million, seven hundred twenty-five thousand, eight hundred fifty-five".