545967503 has 4 divisors (see below), whose sum is σ = 546072768. Its totient is φ = 545862240.

The previous prime is 545967481. The next prime is 545967547. The reversal of 545967503 is 305769545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 545967503 - 2¹⁸ = 545705359 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 (545967203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44426 + ... + 55367.

It is an arithmetic number, because the mean of its divisors is an integer number (136518192).

Almost surely, 2^545967503 is an apocalyptic number.

545967503 is a deficient number, since it is larger than the sum of its proper divisors (105265).

545967503 is an equidigital number, since it uses as much as digits as its factorization.

545967503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105264.

The product of its (nonzero) digits is 567000, while the sum is 44.

The square root of 545967503 is about 23365.9475091424. The cubic root of 545967503 is about 817.3139868624.

The spelling of 545967503 in words is "five hundred forty-five million, nine hundred sixty-seven thousand, five hundred three".