55444573 has 2 divisors, whose sum is σ = 55444574. Its totient is φ = 55444572.

The previous prime is 55444567. The next prime is 55444589. The reversal of 55444573 is 37544455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47361924 + 8082649 = 6882^2 + 2843^2 .

It is a cyclic number.

It is not a de Polignac number, because 55444573 - 2⁵ = 55444541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55444553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27722286 + 27722287.

It is an arithmetic number, because the mean of its divisors is an integer number (27722287).

Almost surely, 2^55444573 is an apocalyptic number.

It is an amenable number.

55444573 is a deficient number, since it is larger than the sum of its proper divisors (1).

55444573 is an equidigital number, since it uses as much as digits as its factorization.

55444573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 37.

The square root of 55444573 is about 7446.1112669634. Note that the first 3 decimals coincide. The cubic root of 55444573 is about 381.3171581773.

The spelling of 55444573 in words is "fifty-five million, four hundred forty-four thousand, five hundred seventy-three".