2581125 has 16 divisors (see below), whose sum is σ = 4295616. Its totient is φ = 1376400.

The previous prime is 2581123. The next prime is 2581133. The reversal of 2581125 is 5211852.

It is not a de Polignac number, because 2581125 - 2¹ = 2581123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2581095 and 2581104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2581121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3067 + ... + 3816.

It is an arithmetic number, because the mean of its divisors is an integer number (268476).

2^2581125 is an apocalyptic number.

2581125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2581125 is a deficient number, since it is larger than the sum of its proper divisors (1714491).

2581125 is an equidigital number, since it uses as much as digits as its factorization.

2581125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6901 (or 6891 counting only the distinct ones).

The product of its digits is 800, while the sum is 24.

The square root of 2581125 is about 1606.5879994572. The cubic root of 2581125 is about 137.1733291974.

Adding to 2581125 its reverse (5211852), we get a palindrome (7792977).

The spelling of 2581125 in words is "two million, five hundred eighty-one thousand, one hundred twenty-five".