2505529 has 8 divisors (see below), whose sum is σ = 2771720. Its totient is φ = 2249856.

The previous prime is 2505527. The next prime is 2505533. The reversal of 2505529 is 9255052.

It can be written as a sum of positive squares in 4 ways, for example, as 1159929 + 1345600 = 1077^2 + 1160^2 .

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 2505529 - 2¹ = 2505527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2505497 and 2505506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2124 + ... + 3085.

It is an arithmetic number, because the mean of its divisors is an integer number (346465).

2^2505529 is an apocalyptic number.

It is an amenable number.

2505529 is a deficient number, since it is larger than the sum of its proper divisors (266191).

2505529 is a wasteful number, since it uses less digits than its factorization.

2505529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5259.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 2505529 is about 1582.8862877667. The cubic root of 2505529 is about 135.8208605942.

The spelling of 2505529 in words is "two million, five hundred five thousand, five hundred twenty-nine".