51163563227 has 16 divisors (see below), whose sum is σ = 61023032832. Its totient is φ = 41942197440.

The previous prime is 51163563203. The next prime is 51163563293. The reversal of 51163563227 is 72236536115.

It is a cyclic number.

It is not a de Polignac number, because 51163563227 - 2¹⁸ = 51163301083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51163563127) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1564352 + ... + 1596722.

It is an arithmetic number, because the mean of its divisors is an integer number (3813939552).

Almost surely, 2^51163563227 is an apocalyptic number.

51163563227 is a deficient number, since it is larger than the sum of its proper divisors (9859469605).

51163563227 is a wasteful number, since it uses less digits than its factorization.

51163563227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42218.

The product of its digits is 226800, while the sum is 41.

The spelling of 51163563227 in words is "fifty-one billion, one hundred sixty-three million, five hundred sixty-three thousand, two hundred twenty-seven".