55525973 has 2 divisors, whose sum is σ = 55525974. Its totient is φ = 55525972.

The previous prime is 55525909. The next prime is 55526027. The reversal of 55525973 is 37952555.

55525973 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., 43533604 + 11992369 = 6598^2 + 3463^2 .

It is a cyclic number.

It is not a de Polignac number, because 55525973 - 2⁶ = 55525909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55525973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55525073) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27762986 + 27762987.

It is an arithmetic number, because the mean of its divisors is an integer number (27762987).

Almost surely, 2^55525973 is an apocalyptic number.

It is an amenable number.

55525973 is a deficient number, since it is larger than the sum of its proper divisors (1).

55525973 is an equidigital number, since it uses as much as digits as its factorization.

55525973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 236250, while the sum is 41.

The square root of 55525973 is about 7451.5752025998. The cubic root of 55525973 is about 381.5036750143.

The spelling of 55525973 in words is "fifty-five million, five hundred twenty-five thousand, nine hundred seventy-three".