51730347 has 8 divisors (see below), whose sum is σ = 69249600. Its totient is φ = 34349000.

The previous prime is 51730307. The next prime is 51730363. The reversal of 51730347 is 74303715.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51730347 - 2⁷ = 51730219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51730307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33597 + ... + 35102.

It is an arithmetic number, because the mean of its divisors is an integer number (8656200).

Almost surely, 2^51730347 is an apocalyptic number.

51730347 is a deficient number, since it is larger than the sum of its proper divisors (17519253).

51730347 is a wasteful number, since it uses less digits than its factorization.

51730347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68953.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 51730347 is about 7192.3811773292. The cubic root of 51730347 is about 372.6048159310.

The spelling of 51730347 in words is "fifty-one million, seven hundred thirty thousand, three hundred forty-seven".