51036394 has 16 divisors (see below), whose sum is σ = 82764000. Its totient is φ = 23521104.

The previous prime is 51036383. The next prime is 51036409. The reversal of 51036394 is 49363015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16744 + ... + 19555.

It is an arithmetic number, because the mean of its divisors is an integer number (5172750).

Almost surely, 2^51036394 is an apocalyptic number.

51036394 is a deficient number, since it is larger than the sum of its proper divisors (31727606).

51036394 is a wasteful number, since it uses less digits than its factorization.

51036394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36357.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 51036394 is about 7143.9760637897. The cubic root of 51036394 is about 370.9311681043.

The spelling of 51036394 in words is "fifty-one million, thirty-six thousand, three hundred ninety-four".