52056666 has 12 divisors (see below), whose sum is σ = 112789482. Its totient is φ = 17352216.

The previous prime is 52056629. The next prime is 52056673. The reversal of 52056666 is 66665025.

It can be written as a sum of positive squares in only one way, i.e., 52056225 + 441 = 7215^2 + 21^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52056666.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1446001 + ... + 1446036.

Almost surely, 2^52056666 is an apocalyptic number.

52056666 is an abundant number, since it is smaller than the sum of its proper divisors (60732816).

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

52056666 is a wasteful number, since it uses less digits than its factorization.

52056666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2892045 (or 2892042 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 52056666 is about 7215.0305612658. The cubic root of 52056666 is about 373.3866475377.

The spelling of 52056666 in words is "fifty-two million, fifty-six thousand, six hundred sixty-six".