550380751181 has 2 divisors, whose sum is σ = 550380751182. Its totient is φ = 550380751180.

The previous prime is 550380751153. The next prime is 550380751213. The reversal of 550380751181 is 181157083055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 410837413156 + 139543338025 = 640966^2 + 373555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550380751181 is a prime.

It is a super-2 number, since 2×550380751181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550380751681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275190375590 + 275190375591.

It is an arithmetic number, because the mean of its divisors is an integer number (275190375591).

Almost surely, 2^550380751181 is an apocalyptic number.

It is an amenable number.

550380751181 is a deficient number, since it is larger than the sum of its proper divisors (1).

550380751181 is an equidigital number, since it uses as much as digits as its factorization.

550380751181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168000, while the sum is 44.

The spelling of 550380751181 in words is "five hundred fifty billion, three hundred eighty million, seven hundred fifty-one thousand, one hundred eighty-one".