5546581 has 4 divisors (see below), whose sum is σ = 5558112. Its totient is φ = 5535052.

The previous prime is 5546561. The next prime is 5546587. The reversal of 5546581 is 1856455.

It is a happy number.

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: 1856455 = 5 ⋅371291.

It is a cyclic number.

It is not a de Polignac number, because 5546581 - 2⁹ = 5546069 is a prime.

It is a super-2 number, since 2×5546581² = 61529121579122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5546587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5011 + ... + 6016.

It is an arithmetic number, because the mean of its divisors is an integer number (1389528).

Almost surely, 2^5546581 is an apocalyptic number.

It is an amenable number.

5546581 is a deficient number, since it is larger than the sum of its proper divisors (11531).

5546581 is a wasteful number, since it uses less digits than its factorization.

5546581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11530.

The product of its digits is 24000, while the sum is 34.

The square root of 5546581 is about 2355.1180437507. The cubic root of 5546581 is about 177.0143412470.

The spelling of 5546581 in words is "five million, five hundred forty-six thousand, five hundred eighty-one".