550106128931 has 2 divisors, whose sum is σ = 550106128932. Its totient is φ = 550106128930.

The previous prime is 550106128837. The next prime is 550106128951. The reversal of 550106128931 is 139821601055.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550106128931 is a prime.

It is a super-2 number, since 2×550106128931² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (550106128951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275053064465 + 275053064466.

It is an arithmetic number, because the mean of its divisors is an integer number (275053064466).

Almost surely, 2^550106128931 is an apocalyptic number.

550106128931 is a deficient number, since it is larger than the sum of its proper divisors (1).

550106128931 is an equidigital number, since it uses as much as digits as its factorization.

550106128931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 41.

Adding to 550106128931 its reverse (139821601055), we get a palindrome (689927729986).

The spelling of 550106128931 in words is "five hundred fifty billion, one hundred six million, one hundred twenty-eight thousand, nine hundred thirty-one".