51000766 has 16 divisors (see below), whose sum is σ = 79228800. Its totient is φ = 24596640.

The previous prime is 51000751. The next prime is 51000841. The reversal of 51000766 is 66700015.

It is a self number, because there is not a number n which added to its sum of digits gives 51000766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20460 + ... + 22816.

It is an arithmetic number, because the mean of its divisors is an integer number (4951800).

Almost surely, 2^51000766 is an apocalyptic number.

51000766 is a deficient number, since it is larger than the sum of its proper divisors (28228034).

51000766 is a wasteful number, since it uses less digits than its factorization.

51000766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 51000766 is about 7141.4820590687. The cubic root of 51000766 is about 370.8448335560.

The spelling of 51000766 in words is "fifty-one million, seven hundred sixty-six", and thus it is an aban number.