51320589 has 8 divisors (see below), whose sum is σ = 69718752. Its totient is φ = 33568080.

The previous prime is 51320527. The next prime is 51320597. The reversal of 51320589 is 98502315.

51320589 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 not a de Polignac number, because 51320589 - 2⁸ = 51320333 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51320509) 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, 161227 + ... + 161544.

It is an arithmetic number, because the mean of its divisors is an integer number (8714844).

Almost surely, 2^51320589 is an apocalyptic number.

It is an amenable number.

51320589 is a deficient number, since it is larger than the sum of its proper divisors (18398163).

51320589 is a wasteful number, since it uses less digits than its factorization.

51320589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322827.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 51320589 is about 7163.8389847902. The cubic root of 51320589 is about 371.6184013238.

The spelling of 51320589 in words is "fifty-one million, three hundred twenty thousand, five hundred eighty-nine".