51943286 has 8 divisors (see below), whose sum is σ = 79385184. Its totient is φ = 25481560.

The previous prime is 51943267. The next prime is 51943349. The reversal of 51943286 is 68234915.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244910 + ... + 245121.

It is an arithmetic number, because the mean of its divisors is an integer number (9923148).

Almost surely, 2^51943286 is an apocalyptic number.

51943286 is a deficient number, since it is larger than the sum of its proper divisors (27441898).

51943286 is a wasteful number, since it uses less digits than its factorization.

51943286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490086.

The product of its digits is 51840, while the sum is 38.

The square root of 51943286 is about 7207.1690697527. The cubic root of 51943286 is about 373.1153703978.

The spelling of 51943286 in words is "fifty-one million, nine hundred forty-three thousand, two hundred eighty-six".