545540015 has 16 divisors (see below), whose sum is σ = 682346496. Its totient is φ = 418240800.

The previous prime is 545540003. The next prime is 545540029. The reversal of 545540015 is 510045545.

It is a happy number.

It is not a de Polignac number, because 545540015 - 2⁴ = 545539999 is a prime.

It is a super-2 number, since 2×545540015² = 595227815932400450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 545540015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1121 + ... + 33050.

It is an arithmetic number, because the mean of its divisors is an integer number (42646656).

Almost surely, 2^545540015 is an apocalyptic number.

545540015 is a deficient number, since it is larger than the sum of its proper divisors (136806481).

545540015 is a wasteful number, since it uses less digits than its factorization.

545540015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34310.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 545540015 is about 23356.7980468214. The cubic root of 545540015 is about 817.1006144854.

The spelling of 545540015 in words is "five hundred forty-five million, five hundred forty thousand, fifteen".