51630982 has 16 divisors (see below), whose sum is σ = 83603520. Its totient is φ = 23772672.

The previous prime is 51630979. The next prime is 51631007. The reversal of 51630982 is 28903615.

51630982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9894 + ... + 14182.

It is an arithmetic number, because the mean of its divisors is an integer number (5225220).

Almost surely, 2^51630982 is an apocalyptic number.

51630982 is a deficient number, since it is larger than the sum of its proper divisors (31972538).

51630982 is a wasteful number, since it uses less digits than its factorization.

51630982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4767.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 51630982 is about 7185.4702003418. The cubic root of 51630982 is about 372.3660933340.

The spelling of 51630982 in words is "fifty-one million, six hundred thirty thousand, nine hundred eighty-two".