552491081 has 8 divisors (see below), whose sum is σ = 554958600. Its totient is φ = 550029312.

The previous prime is 552491057. The next prime is 552491087. The reversal of 552491081 is 180194255.

It can be written as a sum of positive squares in 4 ways, for example, as 395214400 + 157276681 = 19880^2 + 12541^2 .

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-552491081 is a prime.

It is a super-2 number, since 2×552491081² = 610492789169097122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (552491087) 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 7 ways as a sum of consecutive naturals, for example, 401711 + ... + 403083.

It is an arithmetic number, because the mean of its divisors is an integer number (69369825).

Almost surely, 2^552491081 is an apocalyptic number.

It is an amenable number.

552491081 is a deficient number, since it is larger than the sum of its proper divisors (2467519).

552491081 is a wasteful number, since it uses less digits than its factorization.

552491081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 552491081 is about 23505.1288233015. The cubic root of 552491081 is about 820.5563748401.

The spelling of 552491081 in words is "five hundred fifty-two million, four hundred ninety-one thousand, eighty-one".