51838678 has 24 divisors (see below), whose sum is σ = 84482136. Its totient is φ = 23773440.

The previous prime is 51838663. The next prime is 51838723. The reversal of 51838678 is 87683815.

Its product of digits (322560) is a multiple of the sum of its prime factors (1008).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 56701 + ... + 57607.

It is an arithmetic number, because the mean of its divisors is an integer number (3520089).

Almost surely, 2^51838678 is an apocalyptic number.

51838678 is a deficient number, since it is larger than the sum of its proper divisors (32643458).

51838678 is a wasteful number, since it uses less digits than its factorization.

51838678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008 (or 967 counting only the distinct ones).

The product of its digits is 322560, while the sum is 46.

The square root of 51838678 is about 7199.9081938591. The cubic root of 51838678 is about 372.8647311186.

It can be divided in two parts, 5183 and 8678, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 51838678 in words is "fifty-one million, eight hundred thirty-eight thousand, six hundred seventy-eight".