2541625 has 8 divisors (see below), whose sum is σ = 3172104. Its totient is φ = 2033200.

The previous prime is 2541613. The next prime is 2541677. The reversal of 2541625 is 5261452.

It can be written as a sum of positive squares in 4 ways, for example, as 19881 + 2521744 = 141^2 + 1588^2 .

It is not a de Polignac number, because 2541625 - 2⁵ = 2541593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

2541625 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2541625.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10042 + ... + 10291.

It is an arithmetic number, because the mean of its divisors is an integer number (396513).

2^2541625 is an apocalyptic number.

2541625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2541625 is a deficient number, since it is larger than the sum of its proper divisors (630479).

2541625 is an equidigital number, since it uses as much as digits as its factorization.

2541625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20348 (or 20338 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 2541625 is about 1594.2474713795. The cubic root of 2541625 is about 136.4699894219.

Adding to 2541625 its product of digits (2400), we get a square (2544025 = 1595²).

The spelling of 2541625 in words is "two million, five hundred forty-one thousand, six hundred twenty-five".