2528885 has 4 divisors (see below), whose sum is σ = 3034668. Its totient is φ = 2023104.

The previous prime is 2528863. The next prime is 2528891. The reversal of 2528885 is 5888252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1976836 + 552049 = 1406^2 + 743^2 .

It is a cyclic number.

It is not a de Polignac number, because 2528885 - 2⁶ = 2528821 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 3 ways as a sum of consecutive naturals, for example, 252884 + ... + 252893.

It is an arithmetic number, because the mean of its divisors is an integer number (758667).

2^2528885 is an apocalyptic number.

It is an amenable number.

2528885 is a deficient number, since it is larger than the sum of its proper divisors (505783).

2528885 is an equidigital number, since it uses as much as digits as its factorization.

2528885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505782.

The product of its digits is 51200, while the sum is 38.

The square root of 2528885 is about 1590.2468361861. The cubic root of 2528885 is about 136.2415868890.

The spelling of 2528885 in words is "two million, five hundred twenty-eight thousand, eight hundred eighty-five".