544010021 has 2 divisors, whose sum is σ = 544010022. Its totient is φ = 544010020.

The previous prime is 544010009. The next prime is 544010039. The reversal of 544010021 is 120010445.

544010021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 453093796 + 90916225 = 21286^2 + 9535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-544010021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544010221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272005010 + 272005011.

It is an arithmetic number, because the mean of its divisors is an integer number (272005011).

Almost surely, 2^544010021 is an apocalyptic number.

It is an amenable number.

544010021 is a deficient number, since it is larger than the sum of its proper divisors (1).

544010021 is an equidigital number, since it uses as much as digits as its factorization.

544010021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 544010021 is about 23324.0224018071. The cubic root of 544010021 is about 816.3360328853.

Adding to 544010021 its reverse (120010445), we get a palindrome (664020466).

The spelling of 544010021 in words is "five hundred forty-four million, ten thousand, twenty-one".