51023321 has 8 divisors (see below), whose sum is σ = 51806304. Its totient is φ = 50246560.

The previous prime is 51023317. The next prime is 51023339. The reversal of 51023321 is 12332015.

51023321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51023321 - 2² = 51023317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51023321.

It is not an unprimeable number, because it can be changed into a prime (51023351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16526 + ... + 19368.

It is an arithmetic number, because the mean of its divisors is an integer number (6475788).

Almost surely, 2^51023321 is an apocalyptic number.

It is an amenable number.

51023321 is a deficient number, since it is larger than the sum of its proper divisors (782983).

51023321 is a wasteful number, since it uses less digits than its factorization.

51023321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 51023321 is about 7143.0610385184. The cubic root of 51023321 is about 370.8994939931.

Adding to 51023321 its reverse (12332015), we get a palindrome (63355336).

The spelling of 51023321 in words is "fifty-one million, twenty-three thousand, three hundred twenty-one".