55004213 has 8 divisors (see below), whose sum is σ = 62074080. Its totient is φ = 48279280.

The previous prime is 55004207. The next prime is 55004233. The reversal of 55004213 is 31240055.

55004213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55004213 - 2²² = 50809909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55004233) 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 7 ways as a sum of consecutive naturals, for example, 85895 + ... + 86532.

It is an arithmetic number, because the mean of its divisors is an integer number (7759260).

Almost surely, 2^55004213 is an apocalyptic number.

It is an amenable number.

55004213 is a deficient number, since it is larger than the sum of its proper divisors (7069867).

55004213 is a wasteful number, since it uses less digits than its factorization.

55004213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172467.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 55004213 is about 7416.4825220586. The cubic root of 55004213 is about 380.3049560335.

Adding to 55004213 its reverse (31240055), we get a palindrome (86244268).

It can be divided in two parts, 550042 and 13, that added together give a palindrome (550055).

The spelling of 55004213 in words is "fifty-five million, four thousand, two hundred thirteen".