51946886 has 8 divisors (see below), whose sum is σ = 80433984. Its totient is φ = 25135560.

The previous prime is 51946879. The next prime is 51946901. The reversal of 51946886 is 68864915.

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

It is a self number, because there is not a number n which added to its sum of digits gives 51946886.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 418865 + ... + 418988.

It is an arithmetic number, because the mean of its divisors is an integer number (10054248).

Almost surely, 2^51946886 is an apocalyptic number.

51946886 is a deficient number, since it is larger than the sum of its proper divisors (28487098).

51946886 is a wasteful number, since it uses less digits than its factorization.

51946886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837886.

The product of its digits is 414720, while the sum is 47.

The square root of 51946886 is about 7207.4188167471. The cubic root of 51946886 is about 373.1239899545.

The spelling of 51946886 in words is "fifty-one million, nine hundred forty-six thousand, eight hundred eighty-six".