51186748 has 24 divisors (see below), whose sum is σ = 92156400. Its totient is φ = 24866688.

The previous prime is 51186743. The next prime is 51186749. The reversal of 51186748 is 84768115.

It is a self number, because there is not a number n which added to its sum of digits gives 51186748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51186743) 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 7 ways as a sum of consecutive naturals, for example, 19786 + ... + 22222.

It is an arithmetic number, because the mean of its divisors is an integer number (3839850).

Almost surely, 2^51186748 is an apocalyptic number.

It is an amenable number.

51186748 is a deficient number, since it is larger than the sum of its proper divisors (40969652).

51186748 is a wasteful number, since it uses less digits than its factorization.

51186748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589 (or 2587 counting only the distinct ones).

The product of its digits is 53760, while the sum is 40.

The square root of 51186748 is about 7154.4914564209. The cubic root of 51186748 is about 371.2950672917.

The spelling of 51186748 in words is "fifty-one million, one hundred eighty-six thousand, seven hundred forty-eight".