51211294 has 16 divisors (see below), whose sum is σ = 81865728. Its totient is φ = 23970232.

The previous prime is 51211273. The next prime is 51211319. The reversal of 51211294 is 49211215.

It is a happy number.

51211294 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 9682 + ... + 14005.

It is an arithmetic number, because the mean of its divisors is an integer number (5116608).

Almost surely, 2^51211294 is an apocalyptic number.

51211294 is a deficient number, since it is larger than the sum of its proper divisors (30654434).

51211294 is a wasteful number, since it uses less digits than its factorization.

51211294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23759.

The product of its digits is 720, while the sum is 25.

The square root of 51211294 is about 7156.2066767248. The cubic root of 51211294 is about 371.3544078610.

The spelling of 51211294 in words is "fifty-one million, two hundred eleven thousand, two hundred ninety-four".