51946 has 8 divisors (see below), whose sum is σ = 82080. Its totient is φ = 24588.

The previous prime is 51941. The next prime is 51949. The reversal of 51946 is 64915.

51946 = 43² + 44² + ... + 61².

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 51946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646 + ... + 721.

It is an arithmetic number, because the mean of its divisors is an integer number (10260).

2⁵¹⁹⁴⁶ is an apocalyptic number.

51946 is a deficient number, since it is larger than the sum of its proper divisors (30134).

51946 is a wasteful number, since it uses less digits than its factorization.

51946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388.

The product of its digits is 1080, while the sum is 25.

The square root of 51946 is about 227.9166514321. The cubic root of 51946 is about 37.3121868623.

It can be divided in two parts, 519 and 46, that added together give a palindrome (565).

The spelling of 51946 in words is "fifty-one thousand, nine hundred forty-six".