655011550 has 12 divisors (see below), whose sum is σ = 1218321576. Its totient is φ = 262004600.

The previous prime is 655011523. The next prime is 655011559. The reversal of 655011550 is 55110556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655011559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6550066 + ... + 6550165.

It is an arithmetic number, because the mean of its divisors is an integer number (101526798).

Almost surely, 2^655011550 is an apocalyptic number.

655011550 is a deficient number, since it is larger than the sum of its proper divisors (563310026).

655011550 is a wasteful number, since it uses less digits than its factorization.

655011550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13100243 (or 13100238 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 655011550 is about 25593.1934310668. The cubic root of 655011550 is about 868.4596648983.

The spelling of 655011550 in words is "six hundred fifty-five million, eleven thousand, five hundred fifty".