51212794 has 8 divisors (see below), whose sum is σ = 78078708. Its totient is φ = 25186560.

The previous prime is 51212783. The next prime is 51212803. The reversal of 51212794 is 49721215.

It can be written as a sum of positive squares in 2 ways, for example, as 51194025 + 18769 = 7155^2 + 137^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209767 + ... + 210010.

Almost surely, 2^51212794 is an apocalyptic number.

51212794 is a deficient number, since it is larger than the sum of its proper divisors (26865914).

51212794 is a wasteful number, since it uses less digits than its factorization.

51212794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419840.

The product of its digits is 5040, while the sum is 31.

The square root of 51212794 is about 7156.3114800853. The cubic root of 51212794 is about 371.3580335337.

The spelling of 51212794 in words is "fifty-one million, two hundred twelve thousand, seven hundred ninety-four".