552443521 has 8 divisors (see below), whose sum is σ = 631852544. Its totient is φ = 473156640.

The previous prime is 552443503. The next prime is 552443531. The reversal of 552443521 is 125344255.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-552443521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552443531) 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, 20625 + ... + 39118.

It is an arithmetic number, because the mean of its divisors is an integer number (78981568).

Almost surely, 2^552443521 is an apocalyptic number.

It is an amenable number.

552443521 is a deficient number, since it is larger than the sum of its proper divisors (79409023).

552443521 is a wasteful number, since it uses less digits than its factorization.

552443521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61071.

The product of its digits is 24000, while the sum is 31.

The square root of 552443521 is about 23504.1171074346. The cubic root of 552443521 is about 820.5328288908.

Adding to 552443521 its reverse (125344255), we get a palindrome (677787776).

The spelling of 552443521 in words is "five hundred fifty-two million, four hundred forty-three thousand, five hundred twenty-one".