201625 has 8 divisors (see below), whose sum is σ = 251784. Its totient is φ = 161200.

The previous prime is 201623. The next prime is 201629. The reversal of 201625 is 526102.

It is a happy number.

201625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4489 + 197136 = 67^2 + 444^2 .

It is not a de Polignac number, because 201625 - 2¹ = 201623 is a prime.

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

201625 is a lucky number.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 201599 and 201608.

It is not an unprimeable number, because it can be changed into a prime (201623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682 + ... + 931.

It is an arithmetic number, because the mean of its divisors is an integer number (31473).

2²⁰¹⁶²⁵ is an apocalyptic number.

201625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201625 is a deficient number, since it is larger than the sum of its proper divisors (50159).

201625 is an equidigital number, since it uses as much as digits as its factorization.

201625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628 (or 1618 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 201625 is about 449.0267252625. The cubic root of 201625 is about 58.6383120268.

Adding to 201625 its reverse (526102), we get a palindrome (727727).

The spelling of 201625 in words is "two hundred one thousand, six hundred twenty-five".