544507663 has 4 divisors (see below), whose sum is σ = 622294480. Its totient is φ = 466720848.

The previous prime is 544507631. The next prime is 544507673. The reversal of 544507663 is 366705445.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 544507663 - 2⁵ = 544507631 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 (544507673) 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 3 ways as a sum of consecutive naturals, for example, 38893398 + ... + 38893411.

It is an arithmetic number, because the mean of its divisors is an integer number (155573620).

Almost surely, 2^544507663 is an apocalyptic number.

544507663 is a deficient number, since it is larger than the sum of its proper divisors (77786817).

544507663 is an equidigital number, since it uses as much as digits as its factorization.

544507663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77786816.

The product of its (nonzero) digits is 302400, while the sum is 40.

The square root of 544507663 is about 23334.6879773439. The cubic root of 544507663 is about 816.5848759034.

The spelling of 544507663 in words is "five hundred forty-four million, five hundred seven thousand, six hundred sixty-three".