51375457855 has 8 divisors (see below), whose sum is σ = 61686846000. Its totient is φ = 41076168576.

The previous prime is 51375457843. The next prime is 51375457871. The reversal of 51375457855 is 55875457315.

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 51375457855 - 2¹⁹ = 51374933567 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51375457796 and 51375457805.

It is a congruent number.

It is an unprimeable number.

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, 3015370 + ... + 3032359.

It is an arithmetic number, because the mean of its divisors is an integer number (7710855750).

Almost surely, 2^51375457855 is an apocalyptic number.

51375457855 is a deficient number, since it is larger than the sum of its proper divisors (10311388145).

51375457855 is a wasteful number, since it uses less digits than its factorization.

51375457855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6049433.

The product of its digits is 14700000, while the sum is 55.

The spelling of 51375457855 in words is "fifty-one billion, three hundred seventy-five million, four hundred fifty-seven thousand, eight hundred fifty-five".