655696528 has 20 divisors (see below), whose sum is σ = 1345142700. Its totient is φ = 308562944.

The previous prime is 655696523. The next prime is 655696541. The reversal of 655696528 is 825696556.

It can be written as a sum of positive squares in 2 ways, for example, as 434639104 + 221057424 = 20848^2 + 14868^2 .

It is not an unprimeable number, because it can be changed into a prime (655696523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1205053 + ... + 1205596.

It is an arithmetic number, because the mean of its divisors is an integer number (67257135).

Almost surely, 2^655696528 is an apocalyptic number.

655696528 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

655696528 is an abundant number, since it is smaller than the sum of its proper divisors (689446172).

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

655696528 is a wasteful number, since it uses less digits than its factorization.

655696528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410674 (or 2410668 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 52.

The square root of 655696528 is about 25606.5719689302. The cubic root of 655696528 is about 868.7622898525.

The spelling of 655696528 in words is "six hundred fifty-five million, six hundred ninety-six thousand, five hundred twenty-eight".