545323302509 has 2 divisors, whose sum is σ = 545323302510. Its totient is φ = 545323302508.

The previous prime is 545323302451. The next prime is 545323302527. The reversal of 545323302509 is 905203323545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 382422270409 + 162901032100 = 618403^2 + 403610^2 .

It is a cyclic number.

It is not a de Polignac number, because 545323302509 - 2¹² = 545323298413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545323302109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272661651254 + 272661651255.

It is an arithmetic number, because the mean of its divisors is an integer number (272661651255).

Almost surely, 2^545323302509 is an apocalyptic number.

It is an amenable number.

545323302509 is a deficient number, since it is larger than the sum of its proper divisors (1).

545323302509 is an equidigital number, since it uses as much as digits as its factorization.

545323302509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486000, while the sum is 41.

The spelling of 545323302509 in words is "five hundred forty-five billion, three hundred twenty-three million, three hundred two thousand, five hundred nine".