5503681 has 4 divisors (see below), whose sum is σ = 5516032. Its totient is φ = 5491332.

The previous prime is 5503661. The next prime is 5503721. The reversal of 5503681 is 1863055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1863055 = 5 ⋅372611.

It is a cyclic number.

It is not a de Polignac number, because 5503681 - 2¹³ = 5495489 is a prime.

It is a super-2 number, since 2×5503681² = 60581009099522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5503621) 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, 5481 + ... + 6406.

It is an arithmetic number, because the mean of its divisors is an integer number (1379008).

Almost surely, 2^5503681 is an apocalyptic number.

It is an amenable number.

5503681 is a deficient number, since it is larger than the sum of its proper divisors (12351).

5503681 is a wasteful number, since it uses less digits than its factorization.

5503681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12350.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 5503681 is about 2345.9925404826. The cubic root of 5503681 is about 176.5567874154.

The spelling of 5503681 in words is "five million, five hundred three thousand, six hundred eighty-one".