550222531 has 2 divisors, whose sum is σ = 550222532. Its totient is φ = 550222530.

The previous prime is 550222513. The next prime is 550222573. The reversal of 550222531 is 135222055.

It is a happy number.

550222531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (550222513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 550222531 - 2⁹ = 550222019 is a prime.

It is a super-2 number, since 2×550222531² = 605489667240091922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550222496 and 550222505.

It is not a weakly prime, because it can be changed into another prime (550226531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275111265 + 275111266.

It is an arithmetic number, because the mean of its divisors is an integer number (275111266).

Almost surely, 2^550222531 is an apocalyptic number.

550222531 is a deficient number, since it is larger than the sum of its proper divisors (1).

550222531 is an equidigital number, since it uses as much as digits as its factorization.

550222531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 550222531 is about 23456.8226961795. The cubic root of 550222531 is about 819.4317553265.

Adding to 550222531 its reverse (135222055), we get a palindrome (685444586).

The spelling of 550222531 in words is "five hundred fifty million, two hundred twenty-two thousand, five hundred thirty-one".