660252 has 12 divisors (see below), whose sum is σ = 1540616. Its totient is φ = 220080.

The previous prime is 660251. The next prime is 660271. The reversal of 660252 is 252066.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27499 + ... + 27522.

2⁶⁶⁰²⁵² is an apocalyptic number.

It is an amenable number.

660252 is an abundant number, since it is smaller than the sum of its proper divisors (880364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660252 is a wasteful number, since it uses less digits than its factorization.

660252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55028 (or 55026 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 660252 is about 812.5589209405. The cubic root of 660252 is about 87.0769566133.

The spelling of 660252 in words is "six hundred sixty thousand, two hundred fifty-two".