51916473 has 24 divisors (see below), whose sum is σ = 85924800. Its totient is φ = 29589984.

The previous prime is 51916471. The next prime is 51916477. The reversal of 51916473 is 37461915.

51916473 is a `hidden beast` number, since 5 + 1 + 9 + 1 + 647 + 3 = 666.

51916473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51916473 - 2¹ = 51916471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51916471) 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 23 ways as a sum of consecutive naturals, for example, 31258 + ... + 32876.

It is an arithmetic number, because the mean of its divisors is an integer number (3580200).

Almost surely, 2^51916473 is an apocalyptic number.

It is an amenable number.

51916473 is a deficient number, since it is larger than the sum of its proper divisors (34008327).

51916473 is a wasteful number, since it uses less digits than its factorization.

51916473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141 (or 2138 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 51916473 is about 7205.3086679198. The cubic root of 51916473 is about 373.0511589273.

It can be divided in two parts, 5191 and 6473, that added together give a square (11664 = 108²).

The spelling of 51916473 in words is "fifty-one million, nine hundred sixteen thousand, four hundred seventy-three".