655649049 has 16 divisors (see below), whose sum is σ = 954244800. Its totient is φ = 397124160.

The previous prime is 655649009. The next prime is 655649083. The reversal of 655649049 is 940946556.

It is not a de Polignac number, because 655649049 - 2⁷ = 655648921 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 655648989 and 655649007.

It is not an unprimeable number, because it can be changed into a prime (655649009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60927 + ... + 70875.

It is an arithmetic number, because the mean of its divisors is an integer number (59640300).

Almost surely, 2^655649049 is an apocalyptic number.

It is an amenable number.

655649049 is a deficient number, since it is larger than the sum of its proper divisors (298595751).

655649049 is a wasteful number, since it uses less digits than its factorization.

655649049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11960.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The square root of 655649049 is about 25605.6448659275. The cubic root of 655649049 is about 868.7413203142.

The spelling of 655649049 in words is "six hundred fifty-five million, six hundred forty-nine thousand, forty-nine".