2625813 has 12 divisors (see below), whose sum is σ = 3814668. Its totient is φ = 1740480.

The previous prime is 2625811. The next prime is 2625817. The reversal of 2625813 is 3185262.

It can be written as a sum of positive squares in 2 ways, for example, as 2022084 + 603729 = 1422^2 + 777^2 .

It is not a de Polignac number, because 2625813 - 2¹ = 2625811 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6 + 2²¹ + 5⁵ + 8³ + 1 + 3⁶ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2625811) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1033 + ... + 2513.

It is an arithmetic number, because the mean of its divisors is an integer number (317889).

2^2625813 is an apocalyptic number.

It is an amenable number.

2625813 is a deficient number, since it is larger than the sum of its proper divisors (1188855).

2625813 is a wasteful number, since it uses less digits than its factorization.

2625813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684 (or 1681 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2625813 is about 1620.4360524254. The cubic root of 2625813 is about 137.9604486529.

The spelling of 2625813 in words is "two million, six hundred twenty-five thousand, eight hundred thirteen".