51253450343 has 8 divisors (see below), whose sum is σ = 51424813440. Its totient is φ = 51082351480.

The previous prime is 51253450271. The next prime is 51253450427. The reversal of 51253450343 is 34305435215.

It is a happy number.

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 51253450343 - 2²² = 51249256039 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 (51253453343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326408 + ... + 457218.

It is an arithmetic number, because the mean of its divisors is an integer number (6428101680).

Almost surely, 2^51253450343 is an apocalyptic number.

51253450343 is a deficient number, since it is larger than the sum of its proper divisors (171363097).

51253450343 is a wasteful number, since it uses less digits than its factorization.

51253450343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132117.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 51253450343 its reverse (34305435215), we get a palindrome (85558885558).

The spelling of 51253450343 in words is "fifty-one billion, two hundred fifty-three million, four hundred fifty thousand, three hundred forty-three".