51082879 has 4 divisors (see below), whose sum is σ = 51097176. Its totient is φ = 51068584.

The previous prime is 51082861. The next prime is 51082897. The reversal of 51082879 is 97828015.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 97828015 = 5 ⋅19565603.

It is an interprime number because it is at equal distance from previous prime (51082861) and next prime (51082897).

It is a cyclic number.

It is not a de Polignac number, because 51082879 - 2⁷ = 51082751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51082579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3417 + ... + 10669.

It is an arithmetic number, because the mean of its divisors is an integer number (12774294).

Almost surely, 2^51082879 is an apocalyptic number.

51082879 is a deficient number, since it is larger than the sum of its proper divisors (14297).

51082879 is an equidigital number, since it uses as much as digits as its factorization.

51082879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14296.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 51082879 is about 7147.2287636538. The cubic root of 51082879 is about 371.0437511823.

The spelling of 51082879 in words is "fifty-one million, eighty-two thousand, eight hundred seventy-nine".