51788766 has 32 divisors (see below), whose sum is σ = 111075840. Its totient is φ = 16039296.

The previous prime is 51788753. The next prime is 51788773. The reversal of 51788766 is 66788715.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 4845 + ... + 11271.

It is an arithmetic number, because the mean of its divisors is an integer number (3471120).

Almost surely, 2^51788766 is an apocalyptic number.

51788766 is an abundant number, since it is smaller than the sum of its proper divisors (59287074).

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

51788766 is a wasteful number, since it uses less digits than its factorization.

51788766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6528.

The product of its digits is 564480, while the sum is 48.

The square root of 51788766 is about 7196.4412038173. The cubic root of 51788766 is about 372.7450238441.

The spelling of 51788766 in words is "fifty-one million, seven hundred eighty-eight thousand, seven hundred sixty-six".