51323205 has 16 divisors (see below), whose sum is σ = 82373184. Its totient is φ = 27287040.

The previous prime is 51323203. The next prime is 51323213. The reversal of 51323205 is 50232315.

It is not a de Polignac number, because 51323205 - 2¹ = 51323203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51323203) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 204 + ... + 10133.

It is an arithmetic number, because the mean of its divisors is an integer number (5148324).

Almost surely, 2^51323205 is an apocalyptic number.

It is an amenable number.

51323205 is a deficient number, since it is larger than the sum of its proper divisors (31049979).

51323205 is a wasteful number, since it uses less digits than its factorization.

51323205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10676.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 51323205 is about 7164.0215661317. The cubic root of 51323205 is about 371.6247154708.

The spelling of 51323205 in words is "fifty-one million, three hundred twenty-three thousand, two hundred five".