547985569 has 8 divisors (see below), whose sum is σ = 561669120. Its totient is φ = 534448656.

The previous prime is 547985567. The next prime is 547985573. The reversal of 547985569 is 965589745.

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 547985569 - 2¹ = 547985567 is a prime.

It is a super-3 number, since 3×547985569³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (547985561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29074 + ... + 44059.

It is an arithmetic number, because the mean of its divisors is an integer number (70208640).

Almost surely, 2^547985569 is an apocalyptic number.

547985569 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

547985569 is a deficient number, since it is larger than the sum of its proper divisors (13683551).

547985569 is a wasteful number, since it uses less digits than its factorization.

547985569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73319.

The product of its digits is 13608000, while the sum is 58.

The square root of 547985569 is about 23409.0915885260. The cubic root of 547985569 is about 818.3197643723.

The spelling of 547985569 in words is "five hundred forty-seven million, nine hundred eighty-five thousand, five hundred sixty-nine".