55414321 has 4 divisors (see below), whose sum is σ = 55523700. Its totient is φ = 55304944.

The previous prime is 55414319. The next prime is 55414343. The reversal of 55414321 is 12341455.

It is a happy number.

55414321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39125025 + 16289296 = 6255^2 + 4036^2 .

It is a cyclic number.

It is not a de Polignac number, because 55414321 - 2¹ = 55414319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55414921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53926 + ... + 54943.

It is an arithmetic number, because the mean of its divisors is an integer number (13880925).

Almost surely, 2^55414321 is an apocalyptic number.

It is an amenable number.

55414321 is a deficient number, since it is larger than the sum of its proper divisors (109379).

55414321 is a wasteful number, since it uses less digits than its factorization.

55414321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109378.

The product of its digits is 2400, while the sum is 25.

The square root of 55414321 is about 7444.0795938786. The cubic root of 55414321 is about 381.2477933761.

Adding to 55414321 its reverse (12341455), we get a palindrome (67755776).

The spelling of 55414321 in words is "fifty-five million, four hundred fourteen thousand, three hundred twenty-one".