655813583 has 4 divisors (see below), whose sum is σ = 655891200. Its totient is φ = 655735968.

The previous prime is 655813541. The next prime is 655813601. The reversal of 655813583 is 385318556.

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 655813583 - 2¹⁰ = 655812559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655803583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24335 + ... + 43632.

It is an arithmetic number, because the mean of its divisors is an integer number (163972800).

Almost surely, 2^655813583 is an apocalyptic number.

655813583 is a deficient number, since it is larger than the sum of its proper divisors (77617).

655813583 is an equidigital number, since it uses as much as digits as its factorization.

655813583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77616.

The product of its digits is 432000, while the sum is 44.

The square root of 655813583 is about 25608.8575106349. The cubic root of 655813583 is about 868.8139839492.

The spelling of 655813583 in words is "six hundred fifty-five million, eight hundred thirteen thousand, five hundred eighty-three".