2544625 has 8 divisors (see below), whose sum is σ = 3175848. Its totient is φ = 2035600.

The previous prime is 2544623. The next prime is 2544629. The reversal of 2544625 is 5264452.

It can be written as a sum of positive squares in 4 ways, for example, as 73441 + 2471184 = 271^2 + 1572^2 .

It is not a de Polignac number, because 2544625 - 2¹ = 2544623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2544593 and 2544602.

It is not an unprimeable number, because it can be changed into a prime (2544623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10054 + ... + 10303.

It is an arithmetic number, because the mean of its divisors is an integer number (396981).

2^2544625 is an apocalyptic number.

2544625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2544625 is a deficient number, since it is larger than the sum of its proper divisors (631223).

2544625 is an equidigital number, since it uses as much as digits as its factorization.

2544625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20372 (or 20362 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 2544625 is about 1595.1880766856. The cubic root of 2544625 is about 136.5236623007.

The spelling of 2544625 in words is "two million, five hundred forty-four thousand, six hundred twenty-five".