5445578 has 4 divisors (see below), whose sum is σ = 8168370. Its totient is φ = 2722788.

The previous prime is 5445577. The next prime is 5445589. The reversal of 5445578 is 8755445.

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

It can be written as a sum of positive squares in only one way, i.e., 2778889 + 2666689 = 1667^2 + 1633^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5445577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361393 + ... + 1361396.

Almost surely, 2^5445578 is an apocalyptic number.

5445578 is a deficient number, since it is larger than the sum of its proper divisors (2722792).

5445578 is a wasteful number, since it uses less digits than its factorization.

5445578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722791.

The product of its digits is 112000, while the sum is 38.

The square root of 5445578 is about 2333.5762254531. The cubic root of 5445578 is about 175.9332779111.

The spelling of 5445578 in words is "five million, four hundred forty-five thousand, five hundred seventy-eight".