51556374341 has 4 divisors (see below), whose sum is σ = 51558689952. Its totient is φ = 51554058732.

The previous prime is 51556374323. The next prime is 51556374343. The reversal of 51556374341 is 14347365515.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51556374341 - 2¹⁰ = 51556373317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51556374292 and 51556374301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51556374343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124081 + ... + 1169046.

It is an arithmetic number, because the mean of its divisors is an integer number (12889672488).

Almost surely, 2^51556374341 is an apocalyptic number.

It is an amenable number.

51556374341 is a deficient number, since it is larger than the sum of its proper divisors (2315611).

51556374341 is a wasteful number, since it uses less digits than its factorization.

51556374341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315610.

The product of its digits is 756000, while the sum is 44.

The spelling of 51556374341 in words is "fifty-one billion, five hundred fifty-six million, three hundred seventy-four thousand, three hundred forty-one".