545240503 has 2 divisors, whose sum is σ = 545240504. Its totient is φ = 545240502.

The previous prime is 545240489. The next prime is 545240539. The reversal of 545240503 is 305042545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545240503 - 2²¹ = 543143351 is a prime.

It is a super-2 number, since 2×545240503² = 594574412223386018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545240543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272620251 + 272620252.

It is an arithmetic number, because the mean of its divisors is an integer number (272620252).

Almost surely, 2^545240503 is an apocalyptic number.

545240503 is a deficient number, since it is larger than the sum of its proper divisors (1).

545240503 is an equidigital number, since it uses as much as digits as its factorization.

545240503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 545240503 is about 23350.3855000298. The cubic root of 545240503 is about 816.9510524407.

The spelling of 545240503 in words is "five hundred forty-five million, two hundred forty thousand, five hundred three".