5405605 has 4 divisors (see below), whose sum is σ = 6486732. Its totient is φ = 4324480.

The previous prime is 5405599. The next prime is 5405641. The reversal of 5405605 is 5065045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5065045 = 5 ⋅1013009.

It can be written as a sum of positive squares in 2 ways, for example, as 4153444 + 1252161 = 2038^2 + 1119^2 .

It is not a de Polignac number, because 5405605 - 2⁹ = 5405093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5405605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540556 + ... + 540565.

It is an arithmetic number, because the mean of its divisors is an integer number (1621683).

Almost surely, 2^5405605 is an apocalyptic number.

It is an amenable number.

5405605 is a deficient number, since it is larger than the sum of its proper divisors (1081127).

5405605 is a wasteful number, since it uses less digits than its factorization.

5405605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081126.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 5405605 is about 2324.9956989208. The cubic root of 5405605 is about 175.5017437456.

The spelling of 5405605 in words is "five million, four hundred five thousand, six hundred five".