544475549 has 2 divisors, whose sum is σ = 544475550. Its totient is φ = 544475548.

The previous prime is 544475539. The next prime is 544475557. The reversal of 544475549 is 945574445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 445969924 + 98505625 = 21118^2 + 9925^2 .

It is a cyclic number.

It is not a de Polignac number, because 544475549 - 2⁸ = 544475293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544475539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272237774 + 272237775.

It is an arithmetic number, because the mean of its divisors is an integer number (272237775).

Almost surely, 2^544475549 is an apocalyptic number.

It is an amenable number.

544475549 is a deficient number, since it is larger than the sum of its proper divisors (1).

544475549 is an equidigital number, since it uses as much as digits as its factorization.

544475549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016000, while the sum is 47.

The square root of 544475549 is about 23333.9998500043. Note that the first 3 decimals coincide. The cubic root of 544475549 is about 816.5688220600.

The spelling of 544475549 in words is "five hundred forty-four million, four hundred seventy-five thousand, five hundred forty-nine".