550227131 has 2 divisors, whose sum is σ = 550227132. Its totient is φ = 550227130.

The previous prime is 550227127. The next prime is 550227157. The reversal of 550227131 is 131722055.

It is an a-pointer prime, because the next prime (550227157) can be obtained adding 550227131 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 550227131 - 2² = 550227127 is a prime.

It is a super-2 number, since 2×550227131² = 605499791376982322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550227131.

It is not a weakly prime, because it can be changed into another prime (550227331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275113565 + 275113566.

It is an arithmetic number, because the mean of its divisors is an integer number (275113566).

Almost surely, 2^550227131 is an apocalyptic number.

550227131 is a deficient number, since it is larger than the sum of its proper divisors (1).

550227131 is an equidigital number, since it uses as much as digits as its factorization.

550227131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 550227131 is about 23456.9207484699. The cubic root of 550227131 is about 819.4340388726.

Adding to 550227131 its reverse (131722055), we get a palindrome (681949186).

The spelling of 550227131 in words is "five hundred fifty million, two hundred twenty-seven thousand, one hundred thirty-one".