51607889 has 8 divisors (see below), whose sum is σ = 53658528. Its totient is φ = 49595040.

The previous prime is 51607873. The next prime is 51607909. The reversal of 51607889 is 98870615.

It is a happy number.

51607889 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 51607889 - 2⁴ = 51607873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51607289) 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, 6647 + ... + 12140.

It is an arithmetic number, because the mean of its divisors is an integer number (6707316).

Almost surely, 2^51607889 is an apocalyptic number.

It is an amenable number.

51607889 is a deficient number, since it is larger than the sum of its proper divisors (2050639).

51607889 is a wasteful number, since it uses less digits than its factorization.

51607889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18895.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 51607889 is about 7183.8630972479. The cubic root of 51607889 is about 372.3105689685.

The spelling of 51607889 in words is "fifty-one million, six hundred seven thousand, eight hundred eighty-nine".