51029 has 4 divisors (see below), whose sum is σ = 55680. Its totient is φ = 46380.

The previous prime is 51001. The next prime is 51031. The reversal of 51029 is 92015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51029 - 2⁸ = 50773 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 50998 and 51016.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 51029.

It is not an unprimeable number, because it can be changed into a prime (51059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2309 + ... + 2330.

It is an arithmetic number, because the mean of its divisors is an integer number (13920).

2⁵¹⁰²⁹ is an apocalyptic number.

It is an amenable number.

51029 is a deficient number, since it is larger than the sum of its proper divisors (4651).

51029 is a wasteful number, since it uses less digits than its factorization.

51029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4650.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 51029 is about 225.8959937670. The cubic root of 51029 is about 37.0913254107.

The spelling of 51029 in words is "fifty-one thousand, twenty-nine".