5548021 has 4 divisors (see below), whose sum is σ = 5666112. Its totient is φ = 5429932.

The previous prime is 5548013. The next prime is 5548027. The reversal of 5548021 is 1208455.

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: 1208455 = 5 ⋅241691.

It is a cyclic number.

It is not a de Polignac number, because 5548021 - 2³ = 5548013 is a prime.

It is a Duffinian number.

5548021 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5548027) 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, 58975 + ... + 59068.

It is an arithmetic number, because the mean of its divisors is an integer number (1416528).

Almost surely, 2^5548021 is an apocalyptic number.

It is an amenable number.

5548021 is a deficient number, since it is larger than the sum of its proper divisors (118091).

5548021 is a wasteful number, since it uses less digits than its factorization.

5548021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118090.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 5548021 is about 2355.4237410708. The cubic root of 5548021 is about 177.0296587069.

The spelling of 5548021 in words is "five million, five hundred forty-eight thousand, twenty-one".