51804206 has 8 divisors (see below), whose sum is σ = 78032160. Its totient is φ = 25793488.

The previous prime is 51804187. The next prime is 51804217. The reversal of 51804206 is 60240815.

51804206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 53711 + ... + 54666.

It is an arithmetic number, because the mean of its divisors is an integer number (9754020).

Almost surely, 2^51804206 is an apocalyptic number.

51804206 is a deficient number, since it is larger than the sum of its proper divisors (26227954).

51804206 is a wasteful number, since it uses less digits than its factorization.

51804206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108618.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 51804206 is about 7197.5138763326. The cubic root of 51804206 is about 372.7820628377.

The spelling of 51804206 in words is "fifty-one million, eight hundred four thousand, two hundred six".