655272773 has 4 divisors (see below), whose sum is σ = 657407520. Its totient is φ = 653138028.

The previous prime is 655272721. The next prime is 655272809. The reversal of 655272773 is 377272556.

655272773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 655272773 - 2⁸ = 655272517 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 (655272473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066913 + ... + 1067526.

It is an arithmetic number, because the mean of its divisors is an integer number (164351880).

Almost surely, 2^655272773 is an apocalyptic number.

It is an amenable number.

655272773 is a deficient number, since it is larger than the sum of its proper divisors (2134747).

655272773 is a wasteful number, since it uses less digits than its factorization.

655272773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134746.

The product of its digits is 617400, while the sum is 44.

The square root of 655272773 is about 25598.2962909644. The cubic root of 655272773 is about 868.5750987344.

The spelling of 655272773 in words is "six hundred fifty-five million, two hundred seventy-two thousand, seven hundred seventy-three".