51055657571 has 8 divisors (see below), whose sum is σ = 51439575600. Its totient is φ = 50671977120.

The previous prime is 51055657567. The next prime is 51055657673. The reversal of 51055657571 is 17575655015.

51055657571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51055657571 - 2² = 51055657567 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51055657561) 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, 384425 + ... + 499893.

It is an arithmetic number, because the mean of its divisors is an integer number (6429946950).

Almost surely, 2^51055657571 is an apocalyptic number.

51055657571 is a deficient number, since it is larger than the sum of its proper divisors (383918029).

51055657571 is a wasteful number, since it uses less digits than its factorization.

51055657571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118789.

The product of its (nonzero) digits is 918750, while the sum is 47.

The spelling of 51055657571 in words is "fifty-one billion, fifty-five million, six hundred fifty-seven thousand, five hundred seventy-one".