51080915 has 8 divisors (see below), whose sum is σ = 61636848. Its totient is φ = 40638240.

The previous prime is 51080891. The next prime is 51080921. The reversal of 51080915 is 51908015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51080915 - 2¹⁸ = 50818771 is a prime.

It is a Duffinian 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, 27317 + ... + 29126.

It is an arithmetic number, because the mean of its divisors is an integer number (7704606).

Almost surely, 2^51080915 is an apocalyptic number.

51080915 is a deficient number, since it is larger than the sum of its proper divisors (10555933).

51080915 is a wasteful number, since it uses less digits than its factorization.

51080915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56629.

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 51080915 is about 7147.0913664231. The cubic root of 51080915 is about 371.0389959083.

The spelling of 51080915 in words is "fifty-one million, eighty thousand, nine hundred fifteen".