655471543 has 4 divisors (see below), whose sum is σ = 678074040. Its totient is φ = 632869048.

The previous prime is 655471513. The next prime is 655471547. The reversal of 655471543 is 345174556.

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 655471543 - 2⁹ = 655471031 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 655471496 and 655471505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655471547) 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 3 ways as a sum of consecutive naturals, for example, 11301205 + ... + 11301262.

It is an arithmetic number, because the mean of its divisors is an integer number (169518510).

Almost surely, 2^655471543 is an apocalyptic number.

655471543 is a deficient number, since it is larger than the sum of its proper divisors (22602497).

655471543 is a wasteful number, since it uses less digits than its factorization.

655471543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22602496.

The product of its digits is 252000, while the sum is 40.

The square root of 655471543 is about 25602.1784815277. The cubic root of 655471543 is about 868.6629141835.

The spelling of 655471543 in words is "six hundred fifty-five million, four hundred seventy-one thousand, five hundred forty-three".