545564039 has 2 divisors, whose sum is σ = 545564040. Its totient is φ = 545564038.

The previous prime is 545564021. The next prime is 545564059. The reversal of 545564039 is 930465545.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545564039 is a prime.

It is a Sophie Germain prime.

It is equal to p_28624685 and since 545564039 and 28624685 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 545563987 and 545564005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545564059) 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 as a sum of consecutive naturals, namely, 272782019 + 272782020.

It is an arithmetic number, because the mean of its divisors is an integer number (272782020).

Almost surely, 2^545564039 is an apocalyptic number.

545564039 is a deficient number, since it is larger than the sum of its proper divisors (1).

545564039 is an equidigital number, since it uses as much as digits as its factorization.

545564039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 545564039 is about 23357.3123239811. The cubic root of 545564039 is about 817.1126085564.

The spelling of 545564039 in words is "five hundred forty-five million, five hundred sixty-four thousand, thirty-nine".