2728525 has 6 divisors (see below), whose sum is σ = 3383402. Its totient is φ = 2182800.

The previous prime is 2728519. The next prime is 2728541. The reversal of 2728525 is 5258272.

It can be written as a sum of positive squares in 3 ways, for example, as 751689 + 1976836 = 867^2 + 1406^2 .

It is not a de Polignac number, because 2728525 - 2⁹ = 2728013 is a prime.

It is a Duffinian number.

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, 54546 + ... + 54595.

2^2728525 is an apocalyptic number.

2728525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2728525 is a deficient number, since it is larger than the sum of its proper divisors (654877).

2728525 is a wasteful number, since it uses less digits than its factorization.

2728525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109151 (or 109146 counting only the distinct ones).

The product of its digits is 11200, while the sum is 31.

The square root of 2728525 is about 1651.8247485735. The cubic root of 2728525 is about 139.7363234301.

The spelling of 2728525 in words is "two million, seven hundred twenty-eight thousand, five hundred twenty-five".