51672756 has 48 divisors (see below), whose sum is σ = 124185600. Its totient is φ = 16713312.

The previous prime is 51672749. The next prime is 51672769. The reversal of 51672756 is 65727615.

51672756 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 15 ways as a sum of consecutive naturals, for example, 123115 + ... + 123533.

It is an arithmetic number, because the mean of its divisors is an integer number (2587200).

Almost surely, 2^51672756 is an apocalyptic number.

It is an amenable number.

51672756 is an abundant number, since it is smaller than the sum of its proper divisors (72512844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51672756 is a wasteful number, since it uses less digits than its factorization.

51672756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708 (or 706 counting only the distinct ones).

The product of its digits is 88200, while the sum is 39.

The square root of 51672756 is about 7188.3764509102. The cubic root of 51672756 is about 372.4664918885.

It can be divided in two parts, 5 and 1672756, that added together give a palindrome (1672761).

The spelling of 51672756 in words is "fifty-one million, six hundred seventy-two thousand, seven hundred fifty-six".