51000589 has 4 divisors (see below), whose sum is σ = 52759260. Its totient is φ = 49241920.

The previous prime is 51000571. The next prime is 51000619. The reversal of 51000589 is 98500015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10614564 + 40386025 = 3258^2 + 6355^2 .

It is a cyclic number.

It is not a de Polignac number, because 51000589 - 2⁵ = 51000557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51000539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879292 + ... + 879349.

It is an arithmetic number, because the mean of its divisors is an integer number (13189815).

Almost surely, 2^51000589 is an apocalyptic number.

It is an amenable number.

51000589 is a deficient number, since it is larger than the sum of its proper divisors (1758671).

51000589 is a wasteful number, since it uses less digits than its factorization.

51000589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758670.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 51000589 is about 7141.4696666723. The cubic root of 51000589 is about 370.8444045454.

The spelling of 51000589 in words is "fifty-one million, five hundred eighty-nine", and thus it is an aban number.