2544065 has 8 divisors (see below), whose sum is σ = 3087720. Its totient is φ = 2012032.

The previous prime is 2544049. The next prime is 2544079. The reversal of 2544065 is 5604452.

It can be written as a sum of positive squares in 4 ways, for example, as 97969 + 2446096 = 313^2 + 1564^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2544065 - 2⁴ = 2544049 is a prime.

It is an Ulam number.

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, 2414 + ... + 3303.

It is an arithmetic number, because the mean of its divisors is an integer number (385965).

2^2544065 is an apocalyptic number.

It is an amenable number.

2544065 is a deficient number, since it is larger than the sum of its proper divisors (543655).

2544065 is an equidigital number, since it uses as much as digits as its factorization.

2544065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5811.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2544065 is about 1595.0125391357. The cubic root of 2544065 is about 136.5136465669.

The spelling of 2544065 in words is "two million, five hundred forty-four thousand, sixty-five".