55353013 has 2 divisors, whose sum is σ = 55353014. Its totient is φ = 55353012.

The previous prime is 55352987. The next prime is 55353029. The reversal of 55353013 is 31035355.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31606884 + 23746129 = 5622^2 + 4873^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55353013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55353113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27676506 + 27676507.

It is an arithmetic number, because the mean of its divisors is an integer number (27676507).

Almost surely, 2^55353013 is an apocalyptic number.

It is an amenable number.

55353013 is a deficient number, since it is larger than the sum of its proper divisors (1).

55353013 is an equidigital number, since it uses as much as digits as its factorization.

55353013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3375, while the sum is 25.

The square root of 55353013 is about 7439.9605509707. The cubic root of 55353013 is about 381.1071428221.

Adding to 55353013 its reverse (31035355), we get a palindrome (86388368).

The spelling of 55353013 in words is "fifty-five million, three hundred fifty-three thousand, thirteen".