2805525 has 36 divisors (see below), whose sum is σ = 5176132. Its totient is φ = 1451520.

The previous prime is 2805511. The next prime is 2805529. The reversal of 2805525 is 5255082.

It can be written as a sum of positive squares in 6 ways, for example, as 3249 + 2802276 = 57^2 + 1674^2 .

It is not a de Polignac number, because 2805525 - 2⁶ = 2805461 is a prime.

It is a Duffinian number.

It is a Curzon number.

2805525 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2805529) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8157 + ... + 8493.

2^2805525 is an apocalyptic number.

2805525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2805525 is a deficient number, since it is larger than the sum of its proper divisors (2370607).

2805525 is a wasteful number, since it uses less digits than its factorization.

2805525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2805525 is about 1674.9701489877. The cubic root of 2805525 is about 141.0386192690.

The spelling of 2805525 in words is "two million, eight hundred five thousand, five hundred twenty-five".