51374992 has 20 divisors (see below), whose sum is σ = 100154800. Its totient is φ = 25528608.

The previous prime is 51374959. The next prime is 51375001. The reversal of 51374992 is 29947315.

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, 7242 + ... + 12457.

It is an arithmetic number, because the mean of its divisors is an integer number (5007740).

Almost surely, 2^51374992 is an apocalyptic number.

It is an amenable number.

51374992 is a deficient number, since it is larger than the sum of its proper divisors (48779808).

51374992 is a wasteful number, since it uses less digits than its factorization.

51374992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19870 (or 19864 counting only the distinct ones).

The product of its digits is 68040, while the sum is 40.

The square root of 51374992 is about 7167.6350353516. The cubic root of 51374992 is about 371.7496677848.

The spelling of 51374992 in words is "fifty-one million, three hundred seventy-four thousand, nine hundred ninety-two".