545545424 has 20 divisors (see below), whose sum is σ = 1057478820. Its totient is φ = 272647680.

The previous prime is 545545411. The next prime is 545545433. The reversal of 545545424 is 424545545.

It can be written as a sum of positive squares in 2 ways, for example, as 280897600 + 264647824 = 16760^2 + 16268^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35432 + ... + 48440.

It is an arithmetic number, because the mean of its divisors is an integer number (52873941).

Almost surely, 2^545545424 is an apocalyptic number.

It is an amenable number.

545545424 is a deficient number, since it is larger than the sum of its proper divisors (511933396).

545545424 is a wasteful number, since it uses less digits than its factorization.

545545424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15638 (or 15632 counting only the distinct ones).

The product of its digits is 320000, while the sum is 38.

The square root of 545545424 is about 23356.9138372346. The cubic root of 545545424 is about 817.1033149795.

The spelling of 545545424 in words is "five hundred forty-five million, five hundred forty-five thousand, four hundred twenty-four".