5305649 has 8 divisors (see below), whose sum is σ = 5638248. Its totient is φ = 4975360.

The previous prime is 5305627. The next prime is 5305667. The reversal of 5305649 is 9465035.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2745649 + 2560000 = 1657^2 + 1600^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5305649 is a prime.

It is a super-2 number, since 2×5305649² = 56299822622402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5305669) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7499 + ... + 8175.

It is an arithmetic number, because the mean of its divisors is an integer number (704781).

Almost surely, 2^5305649 is an apocalyptic number.

It is an amenable number.

5305649 is a deficient number, since it is larger than the sum of its proper divisors (332599).

5305649 is a wasteful number, since it uses less digits than its factorization.

5305649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 5305649 is about 2303.3994442997. The cubic root of 5305649 is about 174.4132622023.

The spelling of 5305649 in words is "five million, three hundred five thousand, six hundred forty-nine".