55654213 has 4 divisors (see below), whose sum is σ = 55728108. Its totient is φ = 55580320.

The previous prime is 55654199. The next prime is 55654223. The reversal of 55654213 is 31245655.

55654213 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 15737089 + 39917124 = 3967^2 + 6318^2 .

It is a cyclic number.

It is not a de Polignac number, because 55654213 - 2¹³ = 55646021 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55654223) 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, 35806 + ... + 37327.

It is an arithmetic number, because the mean of its divisors is an integer number (13932027).

Almost surely, 2^55654213 is an apocalyptic number.

It is an amenable number.

55654213 is a deficient number, since it is larger than the sum of its proper divisors (73895).

55654213 is an equidigital number, since it uses as much as digits as its factorization.

55654213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73894.

The product of its digits is 18000, while the sum is 31.

The square root of 55654213 is about 7460.1751319925. The cubic root of 55654213 is about 381.7971497777.

Adding to 55654213 its reverse (31245655), we get a palindrome (86899868).

The spelling of 55654213 in words is "fifty-five million, six hundred fifty-four thousand, two hundred thirteen".