51550343 has 8 divisors (see below), whose sum is σ = 55885536. Its totient is φ = 47268000.

The previous prime is 51550339. The next prime is 51550349. The reversal of 51550343 is 34305515.

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

It is not a de Polignac number, because 51550343 - 2² = 51550339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51550349) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11168 + ... + 15093.

It is an arithmetic number, because the mean of its divisors is an integer number (6985692).

Almost surely, 2^51550343 is an apocalyptic number.

51550343 is a deficient number, since it is larger than the sum of its proper divisors (4335193).

51550343 is a wasteful number, since it uses less digits than its factorization.

51550343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26425.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 51550343 is about 7179.8567534457. The cubic root of 51550343 is about 372.1721343690.

Adding to 51550343 its reverse (34305515), we get a palindrome (85855858).

The spelling of 51550343 in words is "fifty-one million, five hundred fifty thousand, three hundred forty-three".