51382363 has 4 divisors (see below), whose sum is σ = 51862680. Its totient is φ = 50902048.

The previous prime is 51382361. The next prime is 51382369. The reversal of 51382363 is 36328315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36328315 = 5 ⋅7265663.

It is a cyclic number.

It is not a de Polignac number, because 51382363 - 2¹ = 51382361 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51382361) 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, 239998 + ... + 240211.

It is an arithmetic number, because the mean of its divisors is an integer number (12965670).

Almost surely, 2^51382363 is an apocalyptic number.

51382363 is a deficient number, since it is larger than the sum of its proper divisors (480317).

51382363 is a wasteful number, since it uses less digits than its factorization.

51382363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480316.

The product of its digits is 12960, while the sum is 31.

The square root of 51382363 is about 7168.1492032463. The cubic root of 51382363 is about 371.7674457974.

The spelling of 51382363 in words is "fifty-one million, three hundred eighty-two thousand, three hundred sixty-three".