51830171057 has 6 divisors (see below), whose sum is σ = 60292239858. Its totient is φ = 44425860864.

The previous prime is 51830171051. The next prime is 51830171137. The reversal of 51830171057 is 75017103815.

It can be written as a sum of positive squares in only one way, i.e., 33182629921 + 18647541136 = 182161^2 + 136556^2 .

It is not a de Polignac number, because 51830171057 - 2²⁶ = 51763062193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51830171057.

It is not an unprimeable number, because it can be changed into a prime (51830171051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 528879248 + ... + 528879345.

It is an arithmetic number, because the mean of its divisors is an integer number (10048706643).

Almost surely, 2^51830171057 is an apocalyptic number.

It is an amenable number.

51830171057 is a deficient number, since it is larger than the sum of its proper divisors (8462068801).

51830171057 is a wasteful number, since it uses less digits than its factorization.

51830171057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057758607 (or 1057758600 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 38.

The spelling of 51830171057 in words is "fifty-one billion, eight hundred thirty million, one hundred seventy-one thousand, fifty-seven".