51813706 has 8 divisors (see below), whose sum is σ = 88823520. Its totient is φ = 22205868.

The previous prime is 51813683. The next prime is 51813731. The reversal of 51813706 is 60731815.

51813706 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 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, 1850476 + ... + 1850503.

It is an arithmetic number, because the mean of its divisors is an integer number (11102940).

Almost surely, 2^51813706 is an apocalyptic number.

51813706 is a deficient number, since it is larger than the sum of its proper divisors (37009814).

51813706 is a wasteful number, since it uses less digits than its factorization.

51813706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3700988.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 51813706 is about 7198.1737961791. The cubic root of 51813706 is about 372.8048487169.

The spelling of 51813706 in words is "fifty-one million, eight hundred thirteen thousand, seven hundred six".