51787676 has 12 divisors (see below), whose sum is σ = 91647360. Its totient is φ = 25602720.

The previous prime is 51787669. The next prime is 51787721. The reversal of 51787676 is 67678715.

It is a self number, because there is not a number n which added to its sum of digits gives 51787676.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72380 + ... + 73091.

It is an arithmetic number, because the mean of its divisors is an integer number (7637280).

Almost surely, 2^51787676 is an apocalyptic number.

It is an amenable number.

51787676 is a deficient number, since it is larger than the sum of its proper divisors (39859684).

51787676 is a wasteful number, since it uses less digits than its factorization.

51787676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145564 (or 145562 counting only the distinct ones).

The product of its digits is 493920, while the sum is 47.

The square root of 51787676 is about 7196.3654715419. The cubic root of 51787676 is about 372.7424087665.

The spelling of 51787676 in words is "fifty-one million, seven hundred eighty-seven thousand, six hundred seventy-six".