655223080 has 32 divisors (see below), whose sum is σ = 1538352000. Its totient is φ = 250693696.

The previous prime is 655223033. The next prime is 655223081. The reversal of 655223080 is 80322556.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (655223081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355180 + ... + 357019.

It is an arithmetic number, because the mean of its divisors is an integer number (48073500).

Almost surely, 2^655223080 is an apocalyptic number.

It is an amenable number.

655223080 is an abundant number, since it is smaller than the sum of its proper divisors (883128920).

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

655223080 is a wasteful number, since it uses less digits than its factorization.

655223080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712233 (or 712229 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 655223080 is about 25597.3256415587. The cubic root of 655223080 is about 868.5531418765.

The spelling of 655223080 in words is "six hundred fifty-five million, two hundred twenty-three thousand, eighty".