54385445 has 4 divisors (see below), whose sum is σ = 65262540. Its totient is φ = 43508352.

The previous prime is 54385421. The next prime is 54385451. The reversal of 54385445 is 54458345.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6180196 + 48205249 = 2486^2 + 6943^2 .

It is a cyclic number.

It is not a de Polignac number, because 54385445 - 2⁸ = 54385189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 54385399 and 54385408.

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, 5438540 + ... + 5438549.

It is an arithmetic number, because the mean of its divisors is an integer number (16315635).

Almost surely, 2^54385445 is an apocalyptic number.

It is an amenable number.

54385445 is a deficient number, since it is larger than the sum of its proper divisors (10877095).

54385445 is a wasteful number, since it uses less digits than its factorization.

54385445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10877094.

The product of its digits is 192000, while the sum is 38.

The square root of 54385445 is about 7374.6488051974. The cubic root of 54385445 is about 378.8734989944.

Subtracting 54385445 from its reverse (54458345), we obtain a square (72900 = 270²).

The spelling of 54385445 in words is "fifty-four million, three hundred eighty-five thousand, four hundred forty-five".