550625447 has 4 divisors (see below), whose sum is σ = 556302096. Its totient is φ = 544948800.

The previous prime is 550625443. The next prime is 550625489. The reversal of 550625447 is 744526055.

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 550625447 - 2² = 550625443 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 550625447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550625443) 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, 2838179 + ... + 2838372.

It is an arithmetic number, because the mean of its divisors is an integer number (139075524).

Almost surely, 2^550625447 is an apocalyptic number.

550625447 is a deficient number, since it is larger than the sum of its proper divisors (5676649).

550625447 is an equidigital number, since it uses as much as digits as its factorization.

550625447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5676648.

The product of its (nonzero) digits is 168000, while the sum is 38.

The square root of 550625447 is about 23465.4095851745. The cubic root of 550625447 is about 819.6317238780.

The spelling of 550625447 in words is "five hundred fifty million, six hundred twenty-five thousand, four hundred forty-seven".