545240505 has 16 divisors (see below), whose sum is σ = 872915904. Its totient is φ = 290617920.

The previous prime is 545240503. The next prime is 545240539. The reversal of 545240505 is 505042545.

It is not a de Polignac number, because 545240505 - 2¹ = 545240503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545240503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16635 + ... + 36975.

It is an arithmetic number, because the mean of its divisors is an integer number (54557244).

Almost surely, 2^545240505 is an apocalyptic number.

It is an amenable number.

545240505 is a deficient number, since it is larger than the sum of its proper divisors (327675399).

545240505 is a wasteful number, since it uses less digits than its factorization.

545240505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22136.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 545240505 is about 23350.3855428556. The cubic root of 545240505 is about 816.9510534396.

The spelling of 545240505 in words is "five hundred forty-five million, two hundred forty thousand, five hundred five".