655550650 has 12 divisors (see below), whose sum is σ = 1219324302. Its totient is φ = 262220240.

The previous prime is 655550639. The next prime is 655550653. The reversal of 655550650 is 56055556.

655550650 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 3 ways, for example, as 584333929 + 71216721 = 24173^2 + 8439^2 .

It is not an unprimeable number, because it can be changed into a prime (655550653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6555457 + ... + 6555556.

Almost surely, 2^655550650 is an apocalyptic number.

655550650 is a deficient number, since it is larger than the sum of its proper divisors (563773652).

655550650 is a wasteful number, since it uses less digits than its factorization.

655550650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13111025 (or 13111020 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 37.

The square root of 655550650 is about 25603.7233620425. The cubic root of 655550650 is about 868.6978582649.

It can be divided in two parts, 6555506 and 50, that added together give a palindrome (6555556).

The spelling of 655550650 in words is "six hundred fifty-five million, five hundred fifty thousand, six hundred fifty".