51606329 has 8 divisors (see below), whose sum is σ = 53343360. Its totient is φ = 49896016.

The previous prime is 51606311. The next prime is 51606343. The reversal of 51606329 is 92360615.

It is a happy number.

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 51606329 - 2²⁰ = 50557753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51606295 and 51606304.

It is not an unprimeable number, because it can be changed into a prime (51606349) 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, 2714 + ... + 10515.

It is an arithmetic number, because the mean of its divisors is an integer number (6667920).

Almost surely, 2^51606329 is an apocalyptic number.

It is an amenable number.

51606329 is a deficient number, since it is larger than the sum of its proper divisors (1737031).

51606329 is a wasteful number, since it uses less digits than its factorization.

51606329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13359.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 51606329 is about 7183.7545197480. The cubic root of 51606329 is about 372.3068175372.

The spelling of 51606329 in words is "fifty-one million, six hundred six thousand, three hundred twenty-nine".