52666 has 8 divisors (see below), whose sum is σ = 83700. Its totient is φ = 24768.

The previous prime is 52639. The next prime is 52667. The reversal of 52666 is 66625.

It can be written as a sum of positive squares in 2 ways, for example, as 52441 + 225 = 229^2 + 15^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

52666 is a modest number, since divided by 666 gives 52 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 52666.

It is not an unprimeable number, because it can be changed into a prime (52667) 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, 741 + ... + 808.

2⁵²⁶⁶⁶ is an apocalyptic number.

52666 is a deficient number, since it is larger than the sum of its proper divisors (31034).

52666 is a wasteful number, since it uses less digits than its factorization.

52666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568.

The product of its digits is 2160, while the sum is 25.

The square root of 52666 is about 229.4907405539. The cubic root of 52666 is about 37.4837855827.

It can be divided in two parts, 526 and 66, that multiplied together give a triangular number (34716 = T₂₆₃).

The spelling of 52666 in words is "fifty-two thousand, six hundred sixty-six".