545063581 has 8 divisors (see below), whose sum is σ = 555027200. Its totient is φ = 535176720.

The previous prime is 545063579. The next prime is 545063599. The reversal of 545063581 is 185360545.

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 545063581 - 2¹ = 545063579 is a prime.

It is a super-2 number, since 2×545063581² = 594188614665087122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 545063581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545063531) 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, 4761 + ... + 33358.

It is an arithmetic number, because the mean of its divisors is an integer number (69378400).

Almost surely, 2^545063581 is an apocalyptic number.

It is an amenable number.

545063581 is a deficient number, since it is larger than the sum of its proper divisors (9963619).

545063581 is a wasteful number, since it uses less digits than its factorization.

545063581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38379.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 545063581 is about 23346.5967755474. The cubic root of 545063581 is about 816.8626802763.

The spelling of 545063581 in words is "five hundred forty-five million, sixty-three thousand, five hundred eighty-one".