2528217 has 6 divisors (see below), whose sum is σ = 3651882. Its totient is φ = 1685472.

The previous prime is 2528167. The next prime is 2528221. The reversal of 2528217 is 7128252.

It can be written as a sum of positive squares in only one way, i.e., 2359296 + 168921 = 1536^2 + 411^2 .

It is not a de Polignac number, because 2528217 - 2⁸ = 2527961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2528717) 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, 140448 + ... + 140465.

It is an arithmetic number, because the mean of its divisors is an integer number (608647).

2^2528217 is an apocalyptic number.

It is an amenable number.

2528217 is a deficient number, since it is larger than the sum of its proper divisors (1123665).

2528217 is a wasteful number, since it uses less digits than its factorization.

2528217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280919 (or 280916 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 2528217 is about 1590.0367920272. The cubic root of 2528217 is about 136.2295898502.

The spelling of 2528217 in words is "two million, five hundred twenty-eight thousand, two hundred seventeen".