545302403 has 4 divisors (see below), whose sum is σ = 545436408. Its totient is φ = 545168400.

The previous prime is 545302397. The next prime is 545302463. The reversal of 545302403 is 304203545.

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 545302403 - 2⁶ = 545302339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545302463) 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, 60701 + ... + 69102.

It is an arithmetic number, because the mean of its divisors is an integer number (136359102).

Almost surely, 2^545302403 is an apocalyptic number.

545302403 is a deficient number, since it is larger than the sum of its proper divisors (134005).

545302403 is a wasteful number, since it uses less digits than its factorization.

545302403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134004.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 545302403 is about 23351.7109223286. The cubic root of 545302403 is about 816.9819668454.

Adding to 545302403 its reverse (304203545), we get a palindrome (849505948).

The spelling of 545302403 in words is "five hundred forty-five million, three hundred two thousand, four hundred three".