54545445 has 12 divisors (see below), whose sum is σ = 94545516. Its totient is φ = 29090880.

The previous prime is 54545419. The next prime is 54545459. The reversal of 54545445 is 54454545.

It can be written as a sum of positive squares in 2 ways, for example, as 17164449 + 37380996 = 4143^2 + 6114^2 .

It is not a de Polignac number, because 54545445 - 2¹³ = 54537253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 606016 + ... + 606105.

It is an arithmetic number, because the mean of its divisors is an integer number (7878793).

Almost surely, 2^54545445 is an apocalyptic number.

It is an amenable number.

54545445 is a deficient number, since it is larger than the sum of its proper divisors (40000071).

54545445 is a wasteful number, since it uses less digits than its factorization.

54545445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212132 (or 1212129 counting only the distinct ones).

The product of its digits is 160000, while the sum is 36.

The square root of 54545445 is about 7385.4888125296. The cubic root of 54545445 is about 379.2446792478.

The spelling of 54545445 in words is "fifty-four million, five hundred forty-five thousand, four hundred forty-five".