545500807 has 2 divisors, whose sum is σ = 545500808. Its totient is φ = 545500806.

The previous prime is 545500789. The next prime is 545500829. The reversal of 545500807 is 708005545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545500807 - 2⁷ = 545500679 is a prime.

It is a super-2 number, since 2×545500807² = 595142260875302498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545504807) 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 as a sum of consecutive naturals, namely, 272750403 + 272750404.

It is an arithmetic number, because the mean of its divisors is an integer number (272750404).

Almost surely, 2^545500807 is an apocalyptic number.

545500807 is a deficient number, since it is larger than the sum of its proper divisors (1).

545500807 is an equidigital number, since it uses as much as digits as its factorization.

545500807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 545500807 is about 23355.9587043649. The cubic root of 545500807 is about 817.0810389899.

The spelling of 545500807 in words is "five hundred forty-five million, five hundred thousand, eight hundred seven".