5547621 has 4 divisors (see below), whose sum is σ = 7396832. Its totient is φ = 3698412.

The previous prime is 5547611. The next prime is 5547631. The reversal of 5547621 is 1267455.

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.

It is an interprime number because it is at equal distance from previous prime (5547611) and next prime (5547631).

It is not a de Polignac number, because 5547621 - 2⁶ = 5547557 is a prime.

It is a D-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 (5547611) 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 3 ways as a sum of consecutive naturals, for example, 924601 + ... + 924606.

It is an arithmetic number, because the mean of its divisors is an integer number (1849208).

Almost surely, 2^5547621 is an apocalyptic number.

It is an amenable number.

5547621 is a deficient number, since it is larger than the sum of its proper divisors (1849211).

5547621 is a wasteful number, since it uses less digits than its factorization.

5547621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849210.

The product of its digits is 8400, while the sum is 30.

The square root of 5547621 is about 2355.3388291284. The cubic root of 5547621 is about 177.0254041228.

The spelling of 5547621 in words is "five million, five hundred forty-seven thousand, six hundred twenty-one".