51344516325455 has 4 divisors (see below), whose sum is σ = 61613419590552. Its totient is φ = 41075613060360.

The previous prime is 51344516325379. The next prime is 51344516325493. The reversal of 51344516325455 is 55452361544315.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51344516325455 - 2¹⁶ = 51344516259919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51344516325397 and 51344516325406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5134451632541 + ... + 5134451632550.

It is an arithmetic number, because the mean of its divisors is an integer number (15403354897638).

Almost surely, 2^{51344516325455} is an apocalyptic number.

51344516325455 is a deficient number, since it is larger than the sum of its proper divisors (10268903265097).

51344516325455 is a wasteful number, since it uses less digits than its factorization.

51344516325455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10268903265096.

The product of its digits is 21600000, while the sum is 53.

The spelling of 51344516325455 in words is "fifty-one trillion, three hundred forty-four billion, five hundred sixteen million, three hundred twenty-five thousand, four hundred fifty-five".