655422520 has 32 divisors (see below), whose sum is σ = 1506081600. Its totient is φ = 256590208.

The previous prime is 655422517. The next prime is 655422569. The reversal of 655422520 is 25224556.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 172435 + ... + 176194.

It is an arithmetic number, because the mean of its divisors is an integer number (47065050).

Almost surely, 2^655422520 is an apocalyptic number.

It is an amenable number.

655422520 is an abundant number, since it is smaller than the sum of its proper divisors (850659080).

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

655422520 is a wasteful number, since it uses less digits than its factorization.

655422520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348687 (or 348683 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 655422520 is about 25601.2210646289. The cubic root of 655422520 is about 868.6412577520.

The spelling of 655422520 in words is "six hundred fifty-five million, four hundred twenty-two thousand, five hundred twenty".