51347984 has 20 divisors (see below), whose sum is σ = 99685584. Its totient is φ = 25622688.

The previous prime is 51347969. The next prime is 51347993. The reversal of 51347984 is 48974315.

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, 5819 + ... + 11685.

Almost surely, 2^51347984 is an apocalyptic number.

It is an amenable number.

51347984 is a deficient number, since it is larger than the sum of its proper divisors (48337600).

51347984 is a wasteful number, since it uses less digits than its factorization.

51347984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6422 (or 6416 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 51347984 is about 7165.7507631790. The cubic root of 51347984 is about 371.6845130305.

The spelling of 51347984 in words is "fifty-one million, three hundred forty-seven thousand, nine hundred eighty-four".