51005585 has 8 divisors (see below), whose sum is σ = 61248960. Its totient is φ = 40776304.

The previous prime is 51005579. The next prime is 51005597. The reversal of 51005585 is 58550015.

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 51005585 - 2¹⁴ = 50989201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7694 + ... + 12696.

It is an arithmetic number, because the mean of its divisors is an integer number (7656120).

Almost surely, 2^51005585 is an apocalyptic number.

It is an amenable number.

51005585 is a deficient number, since it is larger than the sum of its proper divisors (10243375).

51005585 is a wasteful number, since it uses less digits than its factorization.

51005585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7047.

The product of its (nonzero) digits is 5000, while the sum is 29.

The square root of 51005585 is about 7141.8194460515. The cubic root of 51005585 is about 370.8565134131.

The spelling of 51005585 in words is "fifty-one million, five thousand, five hundred eighty-five".