545563987 has 8 divisors (see below), whose sum is σ = 552103776. Its totient is φ = 539043072.

The previous prime is 545563981. The next prime is 545564021. The reversal of 545563987 is 789365545.

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-545563987 is a prime.

It is a super-2 number, since 2×545563987² = 595280127822672338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545563981) 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, 58413 + ... + 67105.

It is an arithmetic number, because the mean of its divisors is an integer number (69012972).

Almost surely, 2^545563987 is an apocalyptic number.

545563987 is a deficient number, since it is larger than the sum of its proper divisors (6539789).

545563987 is an equidigital number, since it uses as much as digits as its factorization.

545563987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9437.

The product of its digits is 4536000, while the sum is 52.

The square root of 545563987 is about 23357.3112108393. The cubic root of 545563987 is about 817.1125825956.

The spelling of 545563987 in words is "five hundred forty-five million, five hundred sixty-three thousand, nine hundred eighty-seven".