545423503 has 8 divisors (see below), whose sum is σ = 567614880. Its totient is φ = 523457760.

The previous prime is 545423497. The next prime is 545423507. The reversal of 545423503 is 305324545.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 545423503 - 2⁹ = 545422991 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 (545423507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51468 + ... + 61153.

It is an arithmetic number, because the mean of its divisors is an integer number (70951860).

Almost surely, 2^545423503 is an apocalyptic number.

545423503 is a deficient number, since it is larger than the sum of its proper divisors (22191377).

545423503 is a wasteful number, since it uses less digits than its factorization.

545423503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112817.

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 545423503 is about 23354.3037361425. The cubic root of 545423503 is about 817.0424404423.

The spelling of 545423503 in words is "five hundred forty-five million, four hundred twenty-three thousand, five hundred three".