51963172 has 6 divisors (see below), whose sum is σ = 90935558. Its totient is φ = 25981584.

The previous prime is 51963167. The next prime is 51963173. The reversal of 51963172 is 27136915.

It can be written as a sum of positive squares in only one way, i.e., 45077796 + 6885376 = 6714^2 + 2624^2 .

It is not an unprimeable number, because it can be changed into a prime (51963173) 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 as a sum of consecutive naturals, namely, 6495393 + ... + 6495400.

Almost surely, 2^51963172 is an apocalyptic number.

It is an amenable number.

51963172 is a deficient number, since it is larger than the sum of its proper divisors (38972386).

51963172 is a wasteful number, since it uses less digits than its factorization.

51963172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12990797 (or 12990795 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 51963172 is about 7208.5485362866. The cubic root of 51963172 is about 373.1629788965.

The spelling of 51963172 in words is "fifty-one million, nine hundred sixty-three thousand, one hundred seventy-two".