5455221 has 4 divisors (see below), whose sum is σ = 7273632. Its totient is φ = 3636812.

The previous prime is 5455213. The next prime is 5455259. The reversal of 5455221 is 1225545.

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.

It is a cyclic number.

It is not a de Polignac number, because 5455221 - 2³ = 5455213 is a prime.

It is a D-number.

5455221 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5455191 and 5455200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5455321) 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, 909201 + ... + 909206.

It is an arithmetic number, because the mean of its divisors is an integer number (1818408).

Almost surely, 2^5455221 is an apocalyptic number.

It is an amenable number.

5455221 is a deficient number, since it is larger than the sum of its proper divisors (1818411).

5455221 is a wasteful number, since it uses less digits than its factorization.

5455221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818410.

The product of its digits is 2000, while the sum is 24.

The square root of 5455221 is about 2335.6414536482. The cubic root of 5455221 is about 176.0370639056.

The spelling of 5455221 in words is "five million, four hundred fifty-five thousand, two hundred twenty-one".