545564687 has 2 divisors, whose sum is σ = 545564688. Its totient is φ = 545564686.

The previous prime is 545564671. The next prime is 545564699. The reversal of 545564687 is 786465545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545564687 - 2⁴ = 545564671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545564647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272782343 + 272782344.

It is an arithmetic number, because the mean of its divisors is an integer number (272782344).

Almost surely, 2^545564687 is an apocalyptic number.

545564687 is a deficient number, since it is larger than the sum of its proper divisors (1).

545564687 is an equidigital number, since it uses as much as digits as its factorization.

545564687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032000, while the sum is 50.

The square root of 545564687 is about 23357.3261954360. The cubic root of 545564687 is about 817.1129320680.

The spelling of 545564687 in words is "five hundred forty-five million, five hundred sixty-four thousand, six hundred eighty-seven".