51060222817 has 2 divisors, whose sum is σ = 51060222818. Its totient is φ = 51060222816.

The previous prime is 51060222769. The next prime is 51060222883. The reversal of 51060222817 is 71822206015.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29489132176 + 21571090641 = 171724^2 + 146871^2 .

It is a cyclic number.

It is not a de Polignac number, because 51060222817 - 2²³ = 51051834209 is a prime.

It is not a weakly prime, because it can be changed into another prime (51060225817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25530111408 + 25530111409.

It is an arithmetic number, because the mean of its divisors is an integer number (25530111409).

Almost surely, 2^51060222817 is an apocalyptic number.

It is an amenable number.

51060222817 is a deficient number, since it is larger than the sum of its proper divisors (1).

51060222817 is an equidigital number, since it uses as much as digits as its factorization.

51060222817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 51060222817 in words is "fifty-one billion, sixty million, two hundred twenty-two thousand, eight hundred seventeen".