55480591 has 4 divisors (see below), whose sum is σ = 56421000. Its totient is φ = 54540184.

The previous prime is 55480583. The next prime is 55480609. The reversal of 55480591 is 19508455.

55480591 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 is a cyclic number.

It is not a de Polignac number, because 55480591 - 2³ = 55480583 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55480591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55480541) 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, 470116 + ... + 470233.

It is an arithmetic number, because the mean of its divisors is an integer number (14105250).

Almost surely, 2^55480591 is an apocalyptic number.

55480591 is a deficient number, since it is larger than the sum of its proper divisors (940409).

55480591 is an equidigital number, since it uses as much as digits as its factorization.

55480591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940408.

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 55480591 is about 7448.5294521805. The cubic root of 55480591 is about 381.3997109425.

The spelling of 55480591 in words is "fifty-five million, four hundred eighty thousand, five hundred ninety-one".