51066856 has 16 divisors (see below), whose sum is σ = 95883840. Its totient is φ = 25497840.

The previous prime is 51066823. The next prime is 51066859. The reversal of 51066856 is 65866015.

It is not an unprimeable number, because it can be changed into a prime (51066859) 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, 2241 + ... + 10351.

It is an arithmetic number, because the mean of its divisors is an integer number (5992740).

Almost surely, 2^51066856 is an apocalyptic number.

It is an amenable number.

51066856 is a deficient number, since it is larger than the sum of its proper divisors (44816984).

51066856 is a wasteful number, since it uses less digits than its factorization.

51066856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8904 (or 8900 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 51066856 is about 7146.1077517765. The cubic root of 51066856 is about 371.0049524311.

The spelling of 51066856 in words is "fifty-one million, sixty-six thousand, eight hundred fifty-six".