55013573 has 2 divisors, whose sum is σ = 55013574. Its totient is φ = 55013572.

The previous prime is 55013557. The next prime is 55013579. The reversal of 55013573 is 37531055.

55013573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44528929 + 10484644 = 6673^2 + 3238^2 .

It is a cyclic number.

It is not a de Polignac number, because 55013573 - 2⁴ = 55013557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55013579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27506786 + 27506787.

It is an arithmetic number, because the mean of its divisors is an integer number (27506787).

Almost surely, 2^55013573 is an apocalyptic number.

It is an amenable number.

55013573 is a deficient number, since it is larger than the sum of its proper divisors (1).

55013573 is an equidigital number, since it uses as much as digits as its factorization.

55013573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7875, while the sum is 29.

The square root of 55013573 is about 7417.1135221190. The cubic root of 55013573 is about 380.3265268205.

The spelling of 55013573 in words is "fifty-five million, thirteen thousand, five hundred seventy-three".