51866676 has 48 divisors (see below), whose sum is σ = 135882880. Its totient is φ = 17107200.

The previous prime is 51866663. The next prime is 51866747. The reversal of 51866676 is 67666815.

51866676 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8001 + ... + 12951.

Almost surely, 2^51866676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51866676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67941440).

51866676 is an abundant number, since it is smaller than the sum of its proper divisors (84016204).

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

51866676 is a wasteful number, since it uses less digits than its factorization.

51866676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5061 (or 5053 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 51866676 is about 7201.8522617449. The cubic root of 51866676 is about 372.9318469496.

It can be divided in two parts, 5 and 1866676, that added together give a palindrome (1866681).

The spelling of 51866676 in words is "fifty-one million, eight hundred sixty-six thousand, six hundred seventy-six".