2001625 has 16 divisors (see below), whose sum is σ = 2545920. Its totient is φ = 1570800.

The previous prime is 2001619. The next prime is 2001641. The reversal of 2001625 is 5261002.

It is a happy number.

It is not a de Polignac number, because 2001625 - 2³ = 2001617 is a prime.

2001625 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2001599 and 2001608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8256 + ... + 8494.

It is an arithmetic number, because the mean of its divisors is an integer number (159120).

2^2001625 is an apocalyptic number.

2001625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2001625 is a deficient number, since it is larger than the sum of its proper divisors (544295).

2001625 is an equidigital number, since it uses as much as digits as its factorization.

2001625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 311 counting only the distinct ones).

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

The square root of 2001625 is about 1414.7879699800. The cubic root of 2001625 is about 126.0262186138.

Adding to 2001625 its reverse (5261002), we get a palindrome (7262627).

The spelling of 2001625 in words is "two million, one thousand, six hundred twenty-five".