551230211 has 8 divisors (see below), whose sum is σ = 630147840. Its totient is φ = 472355208.

The previous prime is 551230187. The next prime is 551230237. The reversal of 551230211 is 112032155.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 551230211 - 2²⁶ = 484121347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551230271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25040 + ... + 41586.

It is an arithmetic number, because the mean of its divisors is an integer number (78768480).

Almost surely, 2^551230211 is an apocalyptic number.

551230211 is a deficient number, since it is larger than the sum of its proper divisors (78917629).

551230211 is a wasteful number, since it uses less digits than its factorization.

551230211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21313.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 551230211 is about 23478.2923356874. The cubic root of 551230211 is about 819.9316872499.

Adding to 551230211 its reverse (112032155), we get a palindrome (663262366).

The spelling of 551230211 in words is "five hundred fifty-one million, two hundred thirty thousand, two hundred eleven".