51384044 has 24 divisors (see below), whose sum is σ = 91929600. Its totient is φ = 25123280.

The previous prime is 51384041. The next prime is 51384077. The reversal of 51384044 is 44048315.

It is a junction number, because it is equal to n+sod(n) for n = 51383998 and 51384016.

It is not an unprimeable number, because it can be changed into a prime (51384041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55949 + ... + 56859.

It is an arithmetic number, because the mean of its divisors is an integer number (3830400).

Almost surely, 2^51384044 is an apocalyptic number.

It is an amenable number.

51384044 is a deficient number, since it is larger than the sum of its proper divisors (40545556).

51384044 is a wasteful number, since it uses less digits than its factorization.

51384044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 51384044 is about 7168.2664571010. The cubic root of 51384044 is about 371.7714999399.

The spelling of 51384044 in words is "fifty-one million, three hundred eighty-four thousand, forty-four".