581525 has 12 divisors (see below), whose sum is σ = 824352. Its totient is φ = 398640.

The previous prime is 581521. The next prime is 581527. The reversal of 581525 is 525185.

It is not a de Polignac number, because 581525 - 2² = 581521 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 581494 and 581503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1487 + ... + 1836.

It is an arithmetic number, because the mean of its divisors is an integer number (68696).

2⁵⁸¹⁵²⁵ is an apocalyptic number.

It is an amenable number.

581525 is a deficient number, since it is larger than the sum of its proper divisors (242827).

581525 is a wasteful number, since it uses less digits than its factorization.

581525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340 (or 3335 counting only the distinct ones).

The product of its digits is 2000, while the sum is 26.

The square root of 581525 is about 762.5778648768. The cubic root of 581525 is about 83.4685360795.

The spelling of 581525 in words is "five hundred eighty-one thousand, five hundred twenty-five".