655576249 has 8 divisors (see below), whose sum is σ = 679475720. Its totient is φ = 632002176.

The previous prime is 655576241. The next prime is 655576277. The reversal of 655576249 is 942675556.

655576249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 512343225 + 143233024 = 22635^2 + 11968^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 655576249 - 2³ = 655576241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655576241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77244 + ... + 85309.

It is an arithmetic number, because the mean of its divisors is an integer number (84934465).

Almost surely, 2^655576249 is an apocalyptic number.

It is an amenable number.

655576249 is a deficient number, since it is larger than the sum of its proper divisors (23899471).

655576249 is a wasteful number, since it uses less digits than its factorization.

655576249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162699.

The product of its digits is 2268000, while the sum is 49.

The square root of 655576249 is about 25604.2232649225. The cubic root of 655576249 is about 868.7091655565.

The spelling of 655576249 in words is "six hundred fifty-five million, five hundred seventy-six thousand, two hundred forty-nine".