51323394 has 16 divisors (see below), whose sum is σ = 102880800. Its totient is φ = 17068800.

The previous prime is 51323353. The next prime is 51323399. The reversal of 51323394 is 49332315.

It is not an unprimeable number, because it can be changed into a prime (51323399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6832 + ... + 12219.

It is an arithmetic number, because the mean of its divisors is an integer number (6430050).

Almost surely, 2^51323394 is an apocalyptic number.

51323394 is an abundant number, since it is smaller than the sum of its proper divisors (51557406).

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

51323394 is a wasteful number, since it uses less digits than its factorization.

51323394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19505.

The product of its digits is 9720, while the sum is 30.

The square root of 51323394 is about 7164.0347570346. The cubic root of 51323394 is about 371.6251716451.

The spelling of 51323394 in words is "fifty-one million, three hundred twenty-three thousand, three hundred ninety-four".