51084915 has 32 divisors (see below), whose sum is σ = 98910720. Its totient is φ = 21978624.

The previous prime is 51084851. The next prime is 51084937. The reversal of 51084915 is 51948015.

It is not a de Polignac number, because 51084915 - 2⁶ = 51084851 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12525 + ... + 16094.

It is an arithmetic number, because the mean of its divisors is an integer number (3090960).

Almost surely, 2^51084915 is an apocalyptic number.

51084915 is a deficient number, since it is larger than the sum of its proper divisors (47825805).

51084915 is a wasteful number, since it uses less digits than its factorization.

51084915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28651.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 51084915 is about 7147.3711950619. The cubic root of 51084915 is about 371.0486806554.

The spelling of 51084915 in words is "fifty-one million, eighty-four thousand, nine hundred fifteen".