655075020 has 24 divisors (see below), whose sum is σ = 1834210224. Its totient is φ = 174686656.

The previous prime is 655074967. The next prime is 655075033. The reversal of 655075020 is 20570556.

655075020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5458899 + ... + 5459018.

It is an arithmetic number, because the mean of its divisors is an integer number (76425426).

Almost surely, 2^655075020 is an apocalyptic number.

655075020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

655075020 is an abundant number, since it is smaller than the sum of its proper divisors (1179135204).

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

655075020 is a wasteful number, since it uses less digits than its factorization.

655075020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10917929 (or 10917927 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 655075020 is about 25594.4333791549. The cubic root of 655075020 is about 868.4877149658.

The spelling of 655075020 in words is "six hundred fifty-five million, seventy-five thousand, twenty".