545421500404 has 24 divisors (see below), whose sum is σ = 1041376593600. Its totient is φ = 247890919680.

The previous prime is 545421500389. The next prime is 545421500411. The reversal of 545421500404 is 404005124545.

It is a super-2 number, since 2×545421500404² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 545421500404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301264 + ... + 1087015.

It is an arithmetic number, because the mean of its divisors is an integer number (43390691400).

Almost surely, 2^545421500404 is an apocalyptic number.

It is an amenable number.

545421500404 is a deficient number, since it is larger than the sum of its proper divisors (495955093196).

545421500404 is a wasteful number, since it uses less digits than its factorization.

545421500404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397223 (or 1397221 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 545421500404 its reverse (404005124545), we get a palindrome (949426624949).

The spelling of 545421500404 in words is "five hundred forty-five billion, four hundred twenty-one million, five hundred thousand, four hundred four".