581225 has 12 divisors (see below), whose sum is σ = 733584. Its totient is φ = 456720.

The previous prime is 581201. The next prime is 581227. The reversal of 581225 is 522185.

It is not a de Polignac number, because 581225 - 2⁸ = 580969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 581225.

It is not an unprimeable number, because it can be changed into a prime (581227) 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, 1502 + ... + 1848.

It is an arithmetic number, because the mean of its divisors is an integer number (61132).

2⁵⁸¹²²⁵ is an apocalyptic number.

It is an amenable number.

581225 is a deficient number, since it is larger than the sum of its proper divisors (152359).

581225 is a wasteful number, since it uses less digits than its factorization.

581225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 419 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 581225 is about 762.3811382766. The cubic root of 581225 is about 83.4541802232.

The spelling of 581225 in words is "five hundred eighty-one thousand, two hundred twenty-five".