55030031213 has 2 divisors, whose sum is σ = 55030031214. Its totient is φ = 55030031212.

The previous prime is 55030031197. The next prime is 55030031233. The reversal of 55030031213 is 31213003055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40964545609 + 14065485604 = 202397^2 + 118598^2 .

It is a cyclic number.

It is not a de Polignac number, because 55030031213 - 2⁴ = 55030031197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55030031233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27515015606 + 27515015607.

It is an arithmetic number, because the mean of its divisors is an integer number (27515015607).

Almost surely, 2^55030031213 is an apocalyptic number.

It is an amenable number.

55030031213 is a deficient number, since it is larger than the sum of its proper divisors (1).

55030031213 is an equidigital number, since it uses as much as digits as its factorization.

55030031213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 23.

Adding to 55030031213 its reverse (31213003055), we get a palindrome (86243034268).

The spelling of 55030031213 in words is "fifty-five billion, thirty million, thirty-one thousand, two hundred thirteen".