51839977 has 8 divisors (see below), whose sum is σ = 60130496. Its totient is φ = 43770672.

The previous prime is 51839971. The next prime is 51840007. The reversal of 51839977 is 77993815.

51839977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51839977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51839977.

It is not an unprimeable number, because it can be changed into a prime (51839971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54798 + ... + 55735.

It is an arithmetic number, because the mean of its divisors is an integer number (7516312).

Almost surely, 2^51839977 is an apocalyptic number.

It is an amenable number.

51839977 is a deficient number, since it is larger than the sum of its proper divisors (8290519).

51839977 is a wasteful number, since it uses less digits than its factorization.

51839977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110607.

The product of its digits is 476280, while the sum is 49.

The square root of 51839977 is about 7199.9984027776. The cubic root of 51839977 is about 372.8678455707.

The spelling of 51839977 in words is "fifty-one million, eight hundred thirty-nine thousand, nine hundred seventy-seven".