3220525 has 36 divisors (see below), whose sum is σ = 5088960. Its totient is φ = 1999200.

The previous prime is 3220523. The next prime is 3220543. The reversal of 3220525 is 5250223.

It is not a de Polignac number, because 3220525 - 2¹ = 3220523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220523) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13356 + ... + 13594.

It is an arithmetic number, because the mean of its divisors is an integer number (141360).

Almost surely, 2^3220525 is an apocalyptic number.

3220525 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3220525 is a deficient number, since it is larger than the sum of its proper divisors (1868435).

3220525 is a wasteful number, since it uses less digits than its factorization.

3220525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 3220525 is about 1794.5821240612. The cubic root of 3220525 is about 147.6756501716.

Adding to 3220525 its reverse (5250223), we get a palindrome (8470748).

The spelling of 3220525 in words is "three million, two hundred twenty thousand, five hundred twenty-five".