655748550 has 36 divisors (see below), whose sum is σ = 1761778980. Its totient is φ = 174866160.

The previous prime is 655748507. The next prime is 655748567. The reversal of 655748550 is 55847556.

655748550 is a `hidden beast` number, since 6 + 5 + 57 + 48 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 655748496 and 655748505.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 728160 + ... + 729059.

It is an arithmetic number, because the mean of its divisors is an integer number (48938305).

Almost surely, 2^655748550 is an apocalyptic number.

655748550 is an abundant number, since it is smaller than the sum of its proper divisors (1106030430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655748550 is a wasteful number, since it uses less digits than its factorization.

655748550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457237 (or 1457229 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 45.

The square root of 655748550 is about 25607.5877426985. The cubic root of 655748550 is about 868.7852646865.

The spelling of 655748550 in words is "six hundred fifty-five million, seven hundred forty-eight thousand, five hundred fifty".