55122773 has 8 divisors (see below), whose sum is σ = 55886040. Its totient is φ = 54362880.

The previous prime is 55122733. The next prime is 55122779. The reversal of 55122773 is 37722155.

55122773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 628849 + 54493924 = 793^2 + 7382^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55122773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55122779) 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 in 7 ways as a sum of consecutive naturals, for example, 58361 + ... + 59297.

It is an arithmetic number, because the mean of its divisors is an integer number (6985755).

Almost surely, 2^55122773 is an apocalyptic number.

It is an amenable number.

55122773 is a deficient number, since it is larger than the sum of its proper divisors (763267).

55122773 is an equidigital number, since it uses as much as digits as its factorization.

55122773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687.

The product of its digits is 14700, while the sum is 32.

The square root of 55122773 is about 7424.4712269629. The cubic root of 55122773 is about 380.5780054109.

The spelling of 55122773 in words is "fifty-five million, one hundred twenty-two thousand, seven hundred seventy-three".