51186368 has 28 divisors (see below), whose sum is σ = 104055672. Its totient is φ = 24967680.

The previous prime is 51186367. The next prime is 51186379. The reversal of 51186368 is 86368115.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51186367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7130 + ... + 12377.

It is an arithmetic number, because the mean of its divisors is an integer number (3716274).

Almost surely, 2^51186368 is an apocalyptic number.

It is an amenable number.

51186368 is an abundant number, since it is smaller than the sum of its proper divisors (52869304).

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

51186368 is a wasteful number, since it uses less digits than its factorization.

51186368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19560 (or 19550 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 51186368 is about 7154.4648996274. The cubic root of 51186368 is about 371.2941484831.

The spelling of 51186368 in words is "fifty-one million, one hundred eighty-six thousand, three hundred sixty-eight".