51368206 has 4 divisors (see below), whose sum is σ = 77052312. Its totient is φ = 25684102.

The previous prime is 51368201. The next prime is 51368243. The reversal of 51368206 is 60286315.

51368206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60286315 = 5 ⋅12057263.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51368201) by changing a digit.

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 as a sum of consecutive naturals, namely, 12842050 + ... + 12842053.

It is an arithmetic number, because the mean of its divisors is an integer number (19263078).

Almost surely, 2^51368206 is an apocalyptic number.

51368206 is a deficient number, since it is larger than the sum of its proper divisors (25684106).

51368206 is a wasteful number, since it uses less digits than its factorization.

51368206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25684105.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 51368206 is about 7167.1616418217. The cubic root of 51368206 is about 371.7332992221.

The spelling of 51368206 in words is "fifty-one million, three hundred sixty-eight thousand, two hundred six".