5548945 has 4 divisors (see below), whose sum is σ = 6658740. Its totient is φ = 4439152.

The previous prime is 5548937. The next prime is 5548951. The reversal of 5548945 is 5498455.

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 3721041 + 1827904 = 1929^2 + 1352^2 .

It is a cyclic number.

It is not a de Polignac number, because 5548945 - 2³ = 5548937 is a prime.

It is a super-2 number, since 2×5548945² = 61581581226050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

5548945 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5548898 and 5548907.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554890 + ... + 554899.

It is an arithmetic number, because the mean of its divisors is an integer number (1664685).

Almost surely, 2^5548945 is an apocalyptic number.

It is an amenable number.

5548945 is a deficient number, since it is larger than the sum of its proper divisors (1109795).

5548945 is a wasteful number, since it uses less digits than its factorization.

5548945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109794.

The product of its digits is 144000, while the sum is 40.

The square root of 5548945 is about 2355.6198759562. The cubic root of 5548945 is about 177.0394860144.

The spelling of 5548945 in words is "five million, five hundred forty-eight thousand, nine hundred forty-five".