51866107 has 16 divisors (see below), whose sum is σ = 54835200. Its totient is φ = 49008960.

The previous prime is 51866083. The next prime is 51866147. The reversal of 51866107 is 70166815.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51866107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51866147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216894 + ... + 217132.

It is an arithmetic number, because the mean of its divisors is an integer number (3427200).

Almost surely, 2^51866107 is an apocalyptic number.

51866107 is a deficient number, since it is larger than the sum of its proper divisors (2969093).

51866107 is a wasteful number, since it uses less digits than its factorization.

51866107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 51866107 is about 7201.8127579103. The cubic root of 51866107 is about 372.9304832031.

The spelling of 51866107 in words is "fifty-one million, eight hundred sixty-six thousand, one hundred seven".