3025521 has 12 divisors (see below), whose sum is σ = 4406272. Its totient is φ = 2000376.

The previous prime is 3025511. The next prime is 3025559. The reversal of 3025521 is 1255203.

It is a happy number.

3025521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3025521 - 2¹⁴ = 3009137 is a prime.

It is a Duffinian number.

3025521 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3025494 and 3025503.

It is not an unprimeable number, because it can be changed into a prime (3025511) 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, 181 + ... + 2466.

Almost surely, 2^3025521 is an apocalyptic number.

It is an amenable number.

3025521 is a deficient number, since it is larger than the sum of its proper divisors (1380751).

3025521 is a wasteful number, since it uses less digits than its factorization.

3025521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780 (or 2777 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 3025521 is about 1739.4024836133. The cubic root of 3025521 is about 144.6327766703.

It can be divided in two parts, 30255 and 21, that added together give a square (30276 = 174²).

The spelling of 3025521 in words is "three million, twenty-five thousand, five hundred twenty-one".