655105550 has 48 divisors (see below), whose sum is σ = 1387089792. Its totient is φ = 227858400.

The previous prime is 655105537. The next prime is 655105571. The reversal of 655105550 is 55501556.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 13244 + ... + 38543.

It is an arithmetic number, because the mean of its divisors is an integer number (28897704).

Almost surely, 2^655105550 is an apocalyptic number.

655105550 is an abundant number, since it is smaller than the sum of its proper divisors (731984242).

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

655105550 is a wasteful number, since it uses less digits than its factorization.

655105550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51833 (or 51828 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 32.

The square root of 655105550 is about 25595.0297909575. The cubic root of 655105550 is about 868.5012068139.

The spelling of 655105550 in words is "six hundred fifty-five million, one hundred five thousand, five hundred fifty".