51180736 has 28 divisors (see below), whose sum is σ = 101963728. Its totient is φ = 25489152.

The previous prime is 51180733. The next prime is 51180739. The reversal of 51180736 is 63708115.

It is an interprime number because it is at equal distance from previous prime (51180733) and next prime (51180739).

It is a junction number, because it is equal to n+sod(n) for n = 51180698 and 51180707.

It is not an unprimeable number, because it can be changed into a prime (51180733) 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 in 3 ways as a sum of consecutive naturals, for example, 16285 + ... + 19171.

Almost surely, 2^51180736 is an apocalyptic number.

It is an amenable number.

51180736 is a deficient number, since it is larger than the sum of its proper divisors (50782992).

51180736 is a wasteful number, since it uses less digits than its factorization.

51180736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176 (or 3166 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 51180736 is about 7154.0712884343. The cubic root of 51180736 is about 371.2805302391.

The spelling of 51180736 in words is "fifty-one million, one hundred eighty thousand, seven hundred thirty-six".