51630316 has 24 divisors (see below), whose sum is σ = 93696624. Its totient is φ = 24875520.

The previous prime is 51630301. The next prime is 51630317. The reversal of 51630316 is 61303615.

51630316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51630317) by changing a digit.

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, 11716 + ... + 15508.

It is an arithmetic number, because the mean of its divisors is an integer number (3904026).

Almost surely, 2^51630316 is an apocalyptic number.

It is an amenable number.

51630316 is a deficient number, since it is larger than the sum of its proper divisors (42066308).

51630316 is a wasteful number, since it uses less digits than its factorization.

51630316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3921 (or 3919 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 51630316 is about 7185.4238566698. The cubic root of 51630316 is about 372.3644922482.

The spelling of 51630316 in words is "fifty-one million, six hundred thirty thousand, three hundred sixteen".