552444561 has 6 divisors (see below), whose sum is σ = 797975490. Its totient is φ = 368296368.

The previous prime is 552444527. The next prime is 552444601. The reversal of 552444561 is 165444255.

552444561 is a `hidden beast` number, since 5 + 52 + 4 + 44 + 561 = 666.

It can be written as a sum of positive squares in only one way, i.e., 473323536 + 79121025 = 21756^2 + 8895^2 .

It is not a de Polignac number, because 552444561 - 2¹⁵ = 552411793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (552443561) 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 5 ways as a sum of consecutive naturals, for example, 30691356 + ... + 30691373.

It is an arithmetic number, because the mean of its divisors is an integer number (132995915).

Almost surely, 2^552444561 is an apocalyptic number.

It is an amenable number.

552444561 is a deficient number, since it is larger than the sum of its proper divisors (245530929).

552444561 is a wasteful number, since it uses less digits than its factorization.

552444561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61382735 (or 61382732 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 552444561 is about 23504.1392312078. The cubic root of 552444561 is about 820.5333437872.

The spelling of 552444561 in words is "five hundred fifty-two million, four hundred forty-four thousand, five hundred sixty-one".