550601213 has 4 divisors (see below), whose sum is σ = 551227068. Its totient is φ = 549975360.

The previous prime is 550601203. The next prime is 550601257. The reversal of 550601213 is 312106055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312106055 = 5 ⋅62421211.

It can be written as a sum of positive squares in 2 ways, for example, as 57183844 + 493417369 = 7562^2 + 22213^2 .

It is a cyclic number.

It is not a de Polignac number, because 550601213 - 2²⁶ = 483492349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550601203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311606 + ... + 313367.

It is an arithmetic number, because the mean of its divisors is an integer number (137806767).

Almost surely, 2^550601213 is an apocalyptic number.

It is an amenable number.

550601213 is a deficient number, since it is larger than the sum of its proper divisors (625855).

550601213 is an equidigital number, since it uses as much as digits as its factorization.

550601213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625854.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 550601213 is about 23464.8932023992. The cubic root of 550601213 is about 819.6196992209.

Adding to 550601213 its reverse (312106055), we get a palindrome (862707268).

The spelling of 550601213 in words is "five hundred fifty million, six hundred one thousand, two hundred thirteen".