673555455 has 12 divisors (see below), whose sum is σ = 1167496200. Its totient is φ = 359229552.

The previous prime is 673555447. The next prime is 673555459. The reversal of 673555455 is 554555376.

673555455 is a `hidden beast` number, since 67 + 35 + 554 + 5 + 5 = 666.

It is not a de Polignac number, because 673555455 - 2³ = 673555447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 14967899 = 673555455 / (6 + 7 + 3 + 5 + 5 + 5 + 4 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 673555455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673555459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7483905 + ... + 7483994.

It is an arithmetic number, because the mean of its divisors is an integer number (97291350).

Almost surely, 2^673555455 is an apocalyptic number.

673555455 is a deficient number, since it is larger than the sum of its proper divisors (493940745).

673555455 is a wasteful number, since it uses less digits than its factorization.

673555455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14967910 (or 14967907 counting only the distinct ones).

The product of its digits is 1575000, while the sum is 45.

The square root of 673555455 is about 25952.9469424958. The cubic root of 673555455 is about 876.5791152541.

The spelling of 673555455 in words is "six hundred seventy-three million, five hundred fifty-five thousand, four hundred fifty-five".