55030313 has 8 divisors (see below), whose sum is σ = 61307400. Its totient is φ = 49045248.

The previous prime is 55030307. The next prime is 55030321. The reversal of 55030313 is 31303055.

55030313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 683929 + 54346384 = 827^2 + 7372^2 .

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 55030313 - 2²⁰ = 53981737 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 (55080313) 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, 72608 + ... + 73361.

It is an arithmetic number, because the mean of its divisors is an integer number (7663425).

Almost surely, 2^55030313 is an apocalyptic number.

It is an amenable number.

55030313 is a deficient number, since it is larger than the sum of its proper divisors (6277087).

55030313 is a wasteful number, since it uses less digits than its factorization.

55030313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146011.

The product of its (nonzero) digits is 675, while the sum is 20.

The square root of 55030313 is about 7418.2419076220. The cubic root of 55030313 is about 380.3650992434.

Adding to 55030313 its reverse (31303055), we get a palindrome (86333368).

The spelling of 55030313 in words is "fifty-five million, thirty thousand, three hundred thirteen".