544513621 has 8 divisors (see below), whose sum is σ = 576949824. Its totient is φ = 512122560.

The previous prime is 544513597. The next prime is 544513631. The reversal of 544513621 is 126315445.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 544513621 - 2⁵ = 544513589 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 (544513631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15376 + ... + 36406.

It is an arithmetic number, because the mean of its divisors is an integer number (72118728).

Almost surely, 2^544513621 is an apocalyptic number.

It is an amenable number.

544513621 is a deficient number, since it is larger than the sum of its proper divisors (32436203).

544513621 is a wasteful number, since it uses less digits than its factorization.

544513621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22571.

The product of its digits is 14400, while the sum is 31.

The square root of 544513621 is about 23334.8156410116. The cubic root of 544513621 is about 816.5878542483.

The spelling of 544513621 in words is "five hundred forty-four million, five hundred thirteen thousand, six hundred twenty-one".