55450313 has 4 divisors (see below), whose sum is σ = 55999428. Its totient is φ = 54901200.

The previous prime is 55450301. The next prime is 55450319. The reversal of 55450313 is 31305455.

55450313 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 48958009 + 6492304 = 6997^2 + 2548^2 .

It is a cyclic number.

It is not a de Polignac number, because 55450313 - 2⁶ = 55450249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55450319) 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, 274406 + ... + 274607.

It is an arithmetic number, because the mean of its divisors is an integer number (13999857).

Almost surely, 2^55450313 is an apocalyptic number.

It is an amenable number.

55450313 is a deficient number, since it is larger than the sum of its proper divisors (549115).

55450313 is a wasteful number, since it uses less digits than its factorization.

55450313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549114.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 55450313 is about 7446.4966930766. The cubic root of 55450313 is about 381.3303165734.

Adding to 55450313 its reverse (31305455), we get a palindrome (86755768).

The spelling of 55450313 in words is "fifty-five million, four hundred fifty thousand, three hundred thirteen".