51558089 has 4 divisors (see below), whose sum is σ = 56245200. Its totient is φ = 46870980.

The previous prime is 51558083. The next prime is 51558097. The reversal of 51558089 is 98085515.

51558089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51558089 - 2¹² = 51553993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51558083) 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 3 ways as a sum of consecutive naturals, for example, 2343539 + ... + 2343560.

It is an arithmetic number, because the mean of its divisors is an integer number (14061300).

Almost surely, 2^51558089 is an apocalyptic number.

It is an amenable number.

51558089 is a deficient number, since it is larger than the sum of its proper divisors (4687111).

51558089 is a wasteful number, since it uses less digits than its factorization.

51558089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4687110.

The product of its (nonzero) digits is 72000, while the sum is 41.

The square root of 51558089 is about 7180.3961589873. The cubic root of 51558089 is about 372.1907744064.

The spelling of 51558089 in words is "fifty-one million, five hundred fifty-eight thousand, eighty-nine".