51682266 has 32 divisors (see below), whose sum is σ = 117958080. Its totient is φ = 16761168.

The previous prime is 51682243. The next prime is 51682277. The reversal of 51682266 is 66228615.

51682266 is a `hidden beast` number, since 516 + 82 + 2 + 66 = 666.

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 51682266.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10936 + ... + 14931.

It is an arithmetic number, because the mean of its divisors is an integer number (3686190).

Almost surely, 2^51682266 is an apocalyptic number.

51682266 is an abundant number, since it is smaller than the sum of its proper divisors (66275814).

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

51682266 is a wasteful number, since it uses less digits than its factorization.

51682266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25915 (or 25909 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 51682266 is about 7189.0379050329. The cubic root of 51682266 is about 372.4893404154.

The spelling of 51682266 in words is "fifty-one million, six hundred eighty-two thousand, two hundred sixty-six".