551300213 has 2 divisors, whose sum is σ = 551300214. Its totient is φ = 551300212.

The previous prime is 551300207. The next prime is 551300279. The reversal of 551300213 is 312003155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307721764 + 243578449 = 17542^2 + 15607^2 .

It is a cyclic number.

It is not a de Polignac number, because 551300213 - 2¹² = 551296117 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551300413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275650106 + 275650107.

It is an arithmetic number, because the mean of its divisors is an integer number (275650107).

Almost surely, 2^551300213 is an apocalyptic number.

It is an amenable number.

551300213 is a deficient number, since it is larger than the sum of its proper divisors (1).

551300213 is an equidigital number, since it uses as much as digits as its factorization.

551300213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 551300213 is about 23479.7830696964. The cubic root of 551300213 is about 819.9663941215.

Adding to 551300213 its reverse (312003155), we get a palindrome (863303368).

The spelling of 551300213 in words is "five hundred fifty-one million, three hundred thousand, two hundred thirteen".