55994213 has 16 divisors (see below), whose sum is σ = 65235456. Its totient is φ = 47549040.

The previous prime is 55994201. The next prime is 55994231. The reversal of 55994213 is 31249955.

It is not a de Polignac number, because 55994213 - 2⁶ = 55994149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55994293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8306 + ... + 13452.

It is an arithmetic number, because the mean of its divisors is an integer number (4077216).

Almost surely, 2^55994213 is an apocalyptic number.

It is an amenable number.

55994213 is a deficient number, since it is larger than the sum of its proper divisors (9241243).

55994213 is a wasteful number, since it uses less digits than its factorization.

55994213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5224.

The product of its digits is 48600, while the sum is 38.

The square root of 55994213 is about 7482.9281033563. The cubic root of 55994213 is about 382.5730573710.

It can be divided in two parts, 559942 and 13, that added together give a palindrome (559955).

The spelling of 55994213 in words is "fifty-five million, nine hundred ninety-four thousand, two hundred thirteen".