51765363 has 12 divisors (see below), whose sum is σ = 80524080. Its totient is φ = 31855536.

The previous prime is 51765359. The next prime is 51765379. The reversal of 51765363 is 36356715.

It is a happy number.

51765363 is a `hidden beast` number, since 51 + 76 + 536 + 3 = 666.

51765363 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51765363 - 2² = 51765359 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (51765353) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 221103 + ... + 221336.

It is an arithmetic number, because the mean of its divisors is an integer number (6710340).

Almost surely, 2^51765363 is an apocalyptic number.

51765363 is a deficient number, since it is larger than the sum of its proper divisors (28758717).

51765363 is a wasteful number, since it uses less digits than its factorization.

51765363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442458 (or 442455 counting only the distinct ones).

The product of its digits is 56700, while the sum is 36.

The square root of 51765363 is about 7194.8150080457. The cubic root of 51765363 is about 372.6888683828.

The spelling of 51765363 in words is "fifty-one million, seven hundred sixty-five thousand, three hundred sixty-three".