545011505 has 4 divisors (see below), whose sum is σ = 654013812. Its totient is φ = 436009200.

The previous prime is 545011463. The next prime is 545011507. The reversal of 545011505 is 505110545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 190329616 + 354681889 = 13796^2 + 18833^2 .

It is not a de Polignac number, because 545011505 - 2⁸ = 545011249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545011507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54501146 + ... + 54501155.

It is an arithmetic number, because the mean of its divisors is an integer number (163503453).

Almost surely, 2^545011505 is an apocalyptic number.

It is an amenable number.

545011505 is a deficient number, since it is larger than the sum of its proper divisors (109002307).

545011505 is a wasteful number, since it uses less digits than its factorization.

545011505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109002306.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 545011505 is about 23345.4814685840. The cubic root of 545011505 is about 816.8366647818.

The spelling of 545011505 in words is "five hundred forty-five million, eleven thousand, five hundred five".