55344013 has 2 divisors, whose sum is σ = 55344014. Its totient is φ = 55344012.

The previous prime is 55344011. The next prime is 55344041. The reversal of 55344013 is 31044355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41705764 + 13638249 = 6458^2 + 3693^2 .

It is a cyclic number.

It is not a de Polignac number, because 55344013 - 2¹ = 55344011 is a prime.

Together with 55344011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55344011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27672006 + 27672007.

It is an arithmetic number, because the mean of its divisors is an integer number (27672007).

Almost surely, 2^55344013 is an apocalyptic number.

It is an amenable number.

55344013 is a deficient number, since it is larger than the sum of its proper divisors (1).

55344013 is an equidigital number, since it uses as much as digits as its factorization.

55344013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 55344013 is about 7439.3556844662. The cubic root of 55344013 is about 381.0864866132.

Adding to 55344013 its reverse (31044355), we get a palindrome (86388368).

It can be divided in two parts, 5534401 and 3, that multiplied together give a triangular number (16603203 = T₅₇₆₂).

The spelling of 55344013 in words is "fifty-five million, three hundred forty-four thousand, thirteen".