51585089 has 8 divisors (see below), whose sum is σ = 54908928. Its totient is φ = 48293440.

The previous prime is 51585047. The next prime is 51585091. The reversal of 51585089 is 98058515.

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 51585089 - 2²⁴ = 34807873 is a prime.

It is a super-2 number, since 2×51585089² = 5322042814275842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51587089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4697 + ... + 11190.

It is an arithmetic number, because the mean of its divisors is an integer number (6863616).

Almost surely, 2^51585089 is an apocalyptic number.

It is an amenable number.

51585089 is a deficient number, since it is larger than the sum of its proper divisors (3323839).

51585089 is a wasteful number, since it uses less digits than its factorization.

51585089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16095.

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

The square root of 51585089 is about 7182.2760320110. The cubic root of 51585089 is about 372.2557328344.

The spelling of 51585089 in words is "fifty-one million, five hundred eighty-five thousand, eighty-nine".