51930329 has 8 divisors (see below), whose sum is σ = 58605120. Its totient is φ = 45581200.

The previous prime is 51930311. The next prime is 51930331. The reversal of 51930329 is 92303915.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51930329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51930295 and 51930304.

It is not an unprimeable number, because it can be changed into a prime (51930929) 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, 81077 + ... + 81714.

It is an arithmetic number, because the mean of its divisors is an integer number (7325640).

Almost surely, 2^51930329 is an apocalyptic number.

It is an amenable number.

51930329 is a deficient number, since it is larger than the sum of its proper divisors (6674791).

51930329 is a wasteful number, since it uses less digits than its factorization.

51930329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162831.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 51930329 is about 7206.2701170578. The cubic root of 51930329 is about 373.0843438798.

The spelling of 51930329 in words is "fifty-one million, nine hundred thirty thousand, three hundred twenty-nine".