51895047455 has 8 divisors (see below), whose sum is σ = 64421438400. Its totient is φ = 40084450336.

The previous prime is 51895047437. The next prime is 51895047511. The reversal of 51895047455 is 55474059815.

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 51895047455 - 2²⁰ = 51893998879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51895047397 and 51895047406.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 178948295 + ... + 178948584.

It is an arithmetic number, because the mean of its divisors is an integer number (8052679800).

Almost surely, 2^51895047455 is an apocalyptic number.

51895047455 is a deficient number, since it is larger than the sum of its proper divisors (12526390945).

51895047455 is a wasteful number, since it uses less digits than its factorization.

51895047455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357896913.

The product of its (nonzero) digits is 5040000, while the sum is 53.

The spelling of 51895047455 in words is "fifty-one billion, eight hundred ninety-five million, forty-seven thousand, four hundred fifty-five".