545506515 has 16 divisors (see below), whose sum is σ = 969789600. Its totient is φ = 290936736.

The previous prime is 545506513. The next prime is 545506537. The reversal of 545506515 is 515605545.

545506515 is a `hidden beast` number, since 54 + 550 + 6 + 51 + 5 = 666.

It is not a de Polignac number, because 545506515 - 2¹ = 545506513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545506515.

It is not an unprimeable number, because it can be changed into a prime (545506513) 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, 2020260 + ... + 2020529.

It is an arithmetic number, because the mean of its divisors is an integer number (60611850).

Almost surely, 2^545506515 is an apocalyptic number.

545506515 is a deficient number, since it is larger than the sum of its proper divisors (424283085).

545506515 is a wasteful number, since it uses less digits than its factorization.

545506515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040803 (or 4040797 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The square root of 545506515 is about 23356.0808998428. The cubic root of 545506515 is about 817.0838888985.

The spelling of 545506515 in words is "five hundred forty-five million, five hundred six thousand, five hundred fifteen".