2840525 has 6 divisors (see below), whose sum is σ = 3522282. Its totient is φ = 2272400.

The previous prime is 2840507. The next prime is 2840549. The reversal of 2840525 is 5250482.

2840525 = 325² + 326² + ... + 349².

It can be written as a sum of positive squares in 3 ways, for example, as 170569 + 2669956 = 413^2 + 1634^2 .

It is not a de Polignac number, because 2840525 - 2⁸ = 2840269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2840494 and 2840503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56786 + ... + 56835.

It is an arithmetic number, because the mean of its divisors is an integer number (587047).

2^2840525 is an apocalyptic number.

2840525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2840525 is a deficient number, since it is larger than the sum of its proper divisors (681757).

2840525 is a wasteful number, since it uses less digits than its factorization.

2840525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113631 (or 113626 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2840525 is about 1685.3857125299. The cubic root of 2840525 is about 141.6227006973.

The spelling of 2840525 in words is "two million, eight hundred forty thousand, five hundred twenty-five".