545555615 has 8 divisors (see below), whose sum is σ = 714181968. Its totient is φ = 396767680.

The previous prime is 545555611. The next prime is 545555617. The reversal of 545555615 is 516555545.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 545555615 - 2² = 545555611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545555611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4959542 + ... + 4959651.

It is an arithmetic number, because the mean of its divisors is an integer number (89272746).

Almost surely, 2^545555615 is an apocalyptic number.

545555615 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

545555615 is a deficient number, since it is larger than the sum of its proper divisors (168626353).

545555615 is a wasteful number, since it uses less digits than its factorization.

545555615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9919209.

The product of its digits is 375000, while the sum is 41.

The square root of 545555615 is about 23357.1319943181. The cubic root of 545555615 is about 817.1084028833.

The spelling of 545555615 in words is "five hundred forty-five million, five hundred fifty-five thousand, six hundred fifteen".