201725 has 6 divisors (see below), whose sum is σ = 250170. Its totient is φ = 161360.

The previous prime is 201709. The next prime is 201731. The reversal of 201725 is 527102.

It can be written as a sum of positive squares in 3 ways, for example, as 2809 + 198916 = 53^2 + 446^2 .

It is not a de Polignac number, because 201725 - 2⁴ = 201709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4010 + ... + 4059.

It is an arithmetic number, because the mean of its divisors is an integer number (41695).

2²⁰¹⁷²⁵ is an apocalyptic number.

201725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201725 is a deficient number, since it is larger than the sum of its proper divisors (48445).

201725 is an equidigital number, since it uses as much as digits as its factorization.

201725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8079 (or 8074 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 201725 is about 449.1380634059. The cubic root of 201725 is about 58.6480047105.

Adding to 201725 its reverse (527102), we get a palindrome (728827).

The spelling of 201725 in words is "two hundred one thousand, seven hundred twenty-five".