51278934 has 16 divisors (see below), whose sum is σ = 117209088. Its totient is φ = 14651112.

The previous prime is 51278933. The next prime is 51278939. The reversal of 51278934 is 43987215.

51278934 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51278892 and 51278901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51278933) 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, 610422 + ... + 610505.

It is an arithmetic number, because the mean of its divisors is an integer number (7325568).

Almost surely, 2^51278934 is an apocalyptic number.

51278934 is an abundant number, since it is smaller than the sum of its proper divisors (65930154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51278934 is a wasteful number, since it uses less digits than its factorization.

51278934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220939.

The product of its digits is 60480, while the sum is 39.

The square root of 51278934 is about 7160.9310847124. The cubic root of 51278934 is about 371.5178311965.

The spelling of 51278934 in words is "fifty-one million, two hundred seventy-eight thousand, nine hundred thirty-four".