655979592 has 64 divisors (see below), whose sum is σ = 1696780800. Its totient is φ = 211115520.

The previous prime is 655979551. The next prime is 655979593. The reversal of 655979592 is 295979556.

It is not an unprimeable number, because it can be changed into a prime (655979593) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 458334 + ... + 459762.

It is an arithmetic number, because the mean of its divisors is an integer number (26512200).

Almost surely, 2^655979592 is an apocalyptic number.

655979592 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655979592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848390400).

655979592 is an abundant number, since it is smaller than the sum of its proper divisors (1040801208).

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

655979592 is a wasteful number, since it uses less digits than its factorization.

655979592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086 (or 2082 counting only the distinct ones).

The product of its digits is 7654500, while the sum is 57.

The square root of 655979592 is about 25612.0985473662. The cubic root of 655979592 is about 868.8872866763.

The spelling of 655979592 in words is "six hundred fifty-five million, nine hundred seventy-nine thousand, five hundred ninety-two".