51197557183 has 2 divisors, whose sum is σ = 51197557184. Its totient is φ = 51197557182.

The previous prime is 51197557129. The next prime is 51197557211. The reversal of 51197557183 is 38175579115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51197557183 - 2²¹ = 51195460031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51197557183.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51197552183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25598778591 + 25598778592.

It is an arithmetic number, because the mean of its divisors is an integer number (25598778592).

Almost surely, 2^51197557183 is an apocalyptic number.

51197557183 is a deficient number, since it is larger than the sum of its proper divisors (1).

51197557183 is an equidigital number, since it uses as much as digits as its factorization.

51197557183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1323000, while the sum is 52.

The spelling of 51197557183 in words is "fifty-one billion, one hundred ninety-seven million, five hundred fifty-seven thousand, one hundred eighty-three".