51343532444251 has 8 divisors (see below), whose sum is σ = 52025200697600. Its totient is φ = 50665387024872.

The previous prime is 51343532444233. The next prime is 51343532444327. The reversal of 51343532444251 is 15244423534315.

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 51343532444251 - 2³³ = 51334942509659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51343532444051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880679151 + ... + 880737448.

It is an arithmetic number, because the mean of its divisors is an integer number (6503150087200).

Almost surely, 2^{51343532444251} is an apocalyptic number.

51343532444251 is a deficient number, since it is larger than the sum of its proper divisors (681668253349).

51343532444251 is a wasteful number, since it uses less digits than its factorization.

51343532444251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761416985.

The product of its digits is 3456000, while the sum is 46.

Adding to 51343532444251 its reverse (15244423534315), we get a palindrome (66587955978566).

The spelling of 51343532444251 in words is "fifty-one trillion, three hundred forty-three billion, five hundred thirty-two million, four hundred forty-four thousand, two hundred fifty-one".