2548521 has 12 divisors (see below), whose sum is σ = 3897972. Its totient is φ = 1598976.

The previous prime is 2548517. The next prime is 2548531. The reversal of 2548521 is 1258452.

It is a happy number.

2548521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2359296 + 189225 = 1536^2 + 435^2 .

It is not a de Polignac number, because 2548521 - 2² = 2548517 is a prime.

2548521 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2548501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8176 + ... + 8481.

It is an arithmetic number, because the mean of its divisors is an integer number (324831).

2^2548521 is an apocalyptic number.

It is an amenable number.

2548521 is a deficient number, since it is larger than the sum of its proper divisors (1349451).

2548521 is a wasteful number, since it uses less digits than its factorization.

2548521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16680 (or 16677 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 2548521 is about 1596.4087822359. The cubic root of 2548521 is about 136.5933025505.

The spelling of 2548521 in words is "two million, five hundred forty-eight thousand, five hundred twenty-one".