2031625 has 8 divisors (see below), whose sum is σ = 2535624. Its totient is φ = 1625200.

The previous prime is 2031611. The next prime is 2031671. The reversal of 2031625 is 5261302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26569 + 2005056 = 163^2 + 1416^2 .

It is not a de Polignac number, because 2031625 - 2⁵ = 2031593 is a prime.

It is a d-powerful number, because it can be written as 2² + 0 + 3¹³ + 1 + 6⁶ + 2⁴ + 5⁸ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8002 + ... + 8251.

It is an arithmetic number, because the mean of its divisors is an integer number (316953).

2^2031625 is an apocalyptic number.

2031625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2031625 is a deficient number, since it is larger than the sum of its proper divisors (503999).

2031625 is an equidigital number, since it uses as much as digits as its factorization.

2031625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16268 (or 16258 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2031625 is about 1425.3508340054. The cubic root of 2031625 is about 126.6527185318.

Adding to 2031625 its reverse (5261302), we get a palindrome (7292927).

The spelling of 2031625 in words is "two million, thirty-one thousand, six hundred twenty-five".