532581 has 12 divisors (see below), whose sum is σ = 826272. Its totient is φ = 304248.

The previous prime is 532561. The next prime is 532601. The reversal of 532581 is 185235.

It is an interprime number because it is at equal distance from previous prime (532561) and next prime (532601).

It is not a de Polignac number, because 532581 - 2⁷ = 532453 is a prime.

It is a super-2 number, since 2×532581² = 567285043122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

532581 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (532501) 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, 1665 + ... + 1958.

It is an arithmetic number, because the mean of its divisors is an integer number (68856).

2⁵³²⁵⁸¹ is an apocalyptic number.

It is an amenable number.

532581 is a deficient number, since it is larger than the sum of its proper divisors (293691).

532581 is a wasteful number, since it uses less digits than its factorization.

532581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640 (or 3633 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 532581 is about 729.7814741414. The cubic root of 532581 is about 81.0578766361.

The spelling of 532581 in words is "five hundred thirty-two thousand, five hundred eighty-one".