551205310013 has 2 divisors, whose sum is σ = 551205310014. Its totient is φ = 551205310012.

The previous prime is 551205309959. The next prime is 551205310031. The reversal of 551205310013 is 310013502155.

It is a happy number.

Together with next prime (551205310031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 513862452964 + 37342857049 = 716842^2 + 193243^2 .

It is a cyclic number.

It is not a de Polignac number, because 551205310013 - 2²⁶ = 551138201149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551205313013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275602655006 + 275602655007.

It is an arithmetic number, because the mean of its divisors is an integer number (275602655007).

Almost surely, 2^551205310013 is an apocalyptic number.

It is an amenable number.

551205310013 is a deficient number, since it is larger than the sum of its proper divisors (1).

551205310013 is an equidigital number, since it uses as much as digits as its factorization.

551205310013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 26.

Adding to 551205310013 its reverse (310013502155), we get a palindrome (861218812168).

The spelling of 551205310013 in words is "five hundred fifty-one billion, two hundred five million, three hundred ten thousand, thirteen".