51508085 has 8 divisors (see below), whose sum is σ = 62069760. Its totient is φ = 41033104.

The previous prime is 51508073. The next prime is 51508117. The reversal of 51508085 is 58080515.

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 51508085 - 2⁸ = 51507829 is a prime.

It is a congruent number.

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, 20357 + ... + 22746.

It is an arithmetic number, because the mean of its divisors is an integer number (7758720).

Almost surely, 2^51508085 is an apocalyptic number.

It is an amenable number.

51508085 is a deficient number, since it is larger than the sum of its proper divisors (10561675).

51508085 is a wasteful number, since it uses less digits than its factorization.

51508085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43347.

The product of its (nonzero) digits is 8000, while the sum is 32.

The square root of 51508085 is about 7176.9133337390. The cubic root of 51508085 is about 372.0704114801.

The spelling of 51508085 in words is "fifty-one million, five hundred eight thousand, eighty-five".