550542213 has 24 divisors (see below), whose sum is σ = 864896760. Its totient is φ = 335433600.

The previous prime is 550542211. The next prime is 550542241. The reversal of 550542213 is 312245055.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26040609 + 524501604 = 5103^2 + 22902^2 .

It is not a de Polignac number, because 550542213 - 2¹ = 550542211 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550542211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11478 + ... + 35111.

It is an arithmetic number, because the mean of its divisors is an integer number (36037365).

Almost surely, 2^550542213 is an apocalyptic number.

It is an amenable number.

550542213 is a deficient number, since it is larger than the sum of its proper divisors (314354547).

550542213 is a wasteful number, since it uses less digits than its factorization.

550542213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46709 (or 46706 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 550542213 is about 23463.6359714346. The cubic root of 550542213 is about 819.5904225633.

Adding to 550542213 its reverse (312245055), we get a palindrome (862787268).

The spelling of 550542213 in words is "five hundred fifty million, five hundred forty-two thousand, two hundred thirteen".