544624261 has 2 divisors, whose sum is σ = 544624262. Its totient is φ = 544624260.

The previous prime is 544624259. The next prime is 544624271. The reversal of 544624261 is 162426445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 415915236 + 128709025 = 20394^2 + 11345^2 .

It is a cyclic number.

It is not a de Polignac number, because 544624261 - 2¹ = 544624259 is a prime.

It is a super-2 number, since 2×544624261² = 593231171339592242, which contains 22 as substring.

Together with 544624259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544624231) 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, 272312130 + 272312131.

It is an arithmetic number, because the mean of its divisors is an integer number (272312131).

Almost surely, 2^544624261 is an apocalyptic number.

It is an amenable number.

544624261 is a deficient number, since it is larger than the sum of its proper divisors (1).

544624261 is an equidigital number, since it uses as much as digits as its factorization.

544624261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 34.

The square root of 544624261 is about 23337.1862271354. The cubic root of 544624261 is about 816.6431581367.

The spelling of 544624261 in words is "five hundred forty-four million, six hundred twenty-four thousand, two hundred sixty-one".