655130473 has 4 divisors (see below), whose sum is σ = 672836740. Its totient is φ = 637424208.

The previous prime is 655130467. The next prime is 655130521. The reversal of 655130473 is 374031556.

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 476854569 + 178275904 = 21837^2 + 13352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655130473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655130453) 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, 8853078 + ... + 8853151.

It is an arithmetic number, because the mean of its divisors is an integer number (168209185).

Almost surely, 2^655130473 is an apocalyptic number.

It is an amenable number.

655130473 is a deficient number, since it is larger than the sum of its proper divisors (17706267).

655130473 is a wasteful number, since it uses less digits than its factorization.

655130473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17706266.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 655130473 is about 25595.5166581962. The cubic root of 655130473 is about 868.5122205003.

The spelling of 655130473 in words is "six hundred fifty-five million, one hundred thirty thousand, four hundred seventy-three".