51516343 has 8 divisors (see below), whose sum is σ = 54252000. Its totient is φ = 48822048.

The previous prime is 51516331. The next prime is 51516349. The reversal of 51516343 is 34361515.

51516343 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 a cyclic number.

It is not a de Polignac number, because 51516343 - 2¹³ = 51508151 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 (51516349) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7768 + ... + 12781.

It is an arithmetic number, because the mean of its divisors is an integer number (6781500).

Almost surely, 2^51516343 is an apocalyptic number.

51516343 is a deficient number, since it is larger than the sum of its proper divisors (2735657).

51516343 is a wasteful number, since it uses less digits than its factorization.

51516343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20681.

The product of its digits is 5400, while the sum is 28.

The square root of 51516343 is about 7177.4886276469. The cubic root of 51516343 is about 372.0902943992.

Adding to 51516343 its reverse (34361515), we get a palindrome (85877858).

The spelling of 51516343 in words is "fifty-one million, five hundred sixteen thousand, three hundred forty-three".