55480717 has 4 divisors (see below), whose sum is σ = 55549116. Its totient is φ = 55412320.

The previous prime is 55480699. The next prime is 55480729. The reversal of 55480717 is 71708455.

55480717 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 19131876 + 36348841 = 4374^2 + 6029^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55480717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55480787) 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, 32968 + ... + 34609.

It is an arithmetic number, because the mean of its divisors is an integer number (13887279).

Almost surely, 2^55480717 is an apocalyptic number.

It is an amenable number.

55480717 is a deficient number, since it is larger than the sum of its proper divisors (68399).

55480717 is an equidigital number, since it uses as much as digits as its factorization.

55480717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68398.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 55480717 is about 7448.5379102210. The cubic root of 55480717 is about 381.3999996700.

The spelling of 55480717 in words is "fifty-five million, four hundred eighty thousand, seven hundred seventeen".