545389403 has 4 divisors (see below), whose sum is σ = 587342448. Its totient is φ = 503436360.

The previous prime is 545389367. The next prime is 545389423. The reversal of 545389403 is 304983545.

545389403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304983545 = 5 ⋅60996709.

It is a cyclic number.

It is not a de Polignac number, because 545389403 - 2⁸ = 545389147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545389423) 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, 20976503 + ... + 20976528.

It is an arithmetic number, because the mean of its divisors is an integer number (146835612).

Almost surely, 2^545389403 is an apocalyptic number.

545389403 is a deficient number, since it is larger than the sum of its proper divisors (41953045).

545389403 is a wasteful number, since it uses less digits than its factorization.

545389403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41953044.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 545389403 is about 23353.5736665719. The cubic root of 545389403 is about 817.0254128618.

The spelling of 545389403 in words is "five hundred forty-five million, three hundred eighty-nine thousand, four hundred three".