54435221 has 4 divisors (see below), whose sum is σ = 54463392. Its totient is φ = 54407052.

The previous prime is 54435217. The next prime is 54435239. The reversal of 54435221 is 12253445.

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 54435221 - 2² = 54435217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54435421) 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, 10955 + ... + 15128.

It is an arithmetic number, because the mean of its divisors is an integer number (13615848).

Almost surely, 2^54435221 is an apocalyptic number.

It is an amenable number.

54435221 is a deficient number, since it is larger than the sum of its proper divisors (28171).

54435221 is a wasteful number, since it uses less digits than its factorization.

54435221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28170.

The product of its digits is 4800, while the sum is 26.

The square root of 54435221 is about 7378.0228381322. The cubic root of 54435221 is about 378.9890510920.

Adding to 54435221 its reverse (12253445), we get a palindrome (66688666).

The spelling of 54435221 in words is "fifty-four million, four hundred thirty-five thousand, two hundred twenty-one".