51728033 has 8 divisors (see below), whose sum is σ = 59228352. Its totient is φ = 44255376.

The previous prime is 51728009. The next prime is 51728041. The reversal of 51728033 is 33082715.

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 51728033 - 2⁶ = 51727969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51727987 and 51728005.

It is not an unprimeable number, because it can be changed into a prime (51728003) 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, 2735 + ... + 10532.

It is an arithmetic number, because the mean of its divisors is an integer number (7403544).

Almost surely, 2^51728033 is an apocalyptic number.

It is an amenable number.

51728033 is a deficient number, since it is larger than the sum of its proper divisors (7500319).

51728033 is a wasteful number, since it uses less digits than its factorization.

51728033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13831.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 51728033 is about 7192.2203108637. The cubic root of 51728033 is about 372.5992600664.

The spelling of 51728033 in words is "fifty-one million, seven hundred twenty-eight thousand, thirty-three".