51392982 has 16 divisors (see below), whose sum is σ = 103168512. Its totient is φ = 17067240.

The previous prime is 51392977. The next prime is 51392993. The reversal of 51392982 is 28929315.

It is a self number, because there is not a number n which added to its sum of digits gives 51392982.

It is a congruent number.

It is an unprimeable number.

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, 14178 + ... + 17429.

It is an arithmetic number, because the mean of its divisors is an integer number (6448032).

Almost surely, 2^51392982 is an apocalyptic number.

51392982 is an abundant number, since it is smaller than the sum of its proper divisors (51775530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51392982 is a wasteful number, since it uses less digits than its factorization.

51392982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31883.

The product of its digits is 38880, while the sum is 39.

The square root of 51392982 is about 7168.8898722187. The cubic root of 51392982 is about 371.7930546273.

The spelling of 51392982 in words is "fifty-one million, three hundred ninety-two thousand, nine hundred eighty-two".