660532 has 6 divisors (see below), whose sum is σ = 1155938. Its totient is φ = 330264.

The previous prime is 660529. The next prime is 660547. The reversal of 660532 is 235066.

It can be written as a sum of positive squares in only one way, i.e., 404496 + 256036 = 636^2 + 506^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82563 + ... + 82570.

2⁶⁶⁰⁵³² is an apocalyptic number.

It is an amenable number.

660532 is a deficient number, since it is larger than the sum of its proper divisors (495406).

660532 is a wasteful number, since it uses less digits than its factorization.

660532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165137 (or 165135 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 660532 is about 812.7311978754. The cubic root of 660532 is about 87.0892640869.

Adding to 660532 its reverse (235066), we get a palindrome (895598).

The spelling of 660532 in words is "six hundred sixty thousand, five hundred thirty-two".