5217605 has 4 divisors (see below), whose sum is σ = 6261132. Its totient is φ = 4174080.

The previous prime is 5217601. The next prime is 5217607. The reversal of 5217605 is 5067125.

5217605 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 1399489 + 3818116 = 1183^2 + 1954^2 .

It is not a de Polignac number, because 5217605 - 2² = 5217601 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5217601) by changing a digit.

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, 521756 + ... + 521765.

It is an arithmetic number, because the mean of its divisors is an integer number (1565283).

Almost surely, 2^5217605 is an apocalyptic number.

It is an amenable number.

5217605 is a deficient number, since it is larger than the sum of its proper divisors (1043527).

5217605 is a wasteful number, since it uses less digits than its factorization.

5217605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043526.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 5217605 is about 2284.2077401147. The cubic root of 5217605 is about 173.4431154473.

The spelling of 5217605 in words is "five million, two hundred seventeen thousand, six hundred five".