545215305503 has 16 divisors (see below), whose sum is σ = 643166728704. Its totient is φ = 456568959360.

The previous prime is 545215305461. The next prime is 545215305577. The reversal of 545215305503 is 305503512545.

It is a cyclic number.

It is not a de Polignac number, because 545215305503 - 2²² = 545211111199 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 (545215305403) 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, 31008125 + ... + 31025702.

It is an arithmetic number, because the mean of its divisors is an integer number (40197920544).

Almost surely, 2^545215305503 is an apocalyptic number.

545215305503 is a deficient number, since it is larger than the sum of its proper divisors (97951423201).

545215305503 is a wasteful number, since it uses less digits than its factorization.

545215305503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62033902.

The product of its (nonzero) digits is 225000, while the sum is 38.

The spelling of 545215305503 in words is "five hundred forty-five billion, two hundred fifteen million, three hundred five thousand, five hundred three".