2589521 has 6 divisors (see below), whose sum is σ = 2846466. Its totient is φ = 2354000.

The previous prime is 2589487. The next prime is 2589533. The reversal of 2589521 is 1259852.

It can be written as a sum of positive squares in only one way, i.e., 1890625 + 698896 = 1375^2 + 836^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2589521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2589551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10580 + ... + 10821.

It is an arithmetic number, because the mean of its divisors is an integer number (474411).

2^2589521 is an apocalyptic number.

It is an amenable number.

2589521 is a deficient number, since it is larger than the sum of its proper divisors (256945).

2589521 is a wasteful number, since it uses less digits than its factorization.

2589521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21423 (or 21412 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The square root of 2589521 is about 1609.1988690028. The cubic root of 2589521 is about 137.3219027520.

It can be divided in two parts, 258 and 9521, that added together give a palindrome (9779).

The spelling of 2589521 in words is "two million, five hundred eighty-nine thousand, five hundred twenty-one".