655521032 has 32 divisors (see below), whose sum is σ = 1274037120. Its totient is φ = 315986880.

The previous prime is 655521029. The next prime is 655521043. The reversal of 655521032 is 230125556.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 655520986 and 655521004.

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, 12182 + ... + 38202.

It is an arithmetic number, because the mean of its divisors is an integer number (39813660).

Almost surely, 2^655521032 is an apocalyptic number.

It is an amenable number.

655521032 is a deficient number, since it is larger than the sum of its proper divisors (618516088).

655521032 is a wasteful number, since it uses less digits than its factorization.

655521032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26141 (or 26137 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 655521032 is about 25603.1449630705. The cubic root of 655521032 is about 868.6847753802.

Adding to 655521032 its reverse (230125556), we get a palindrome (885646588).

The spelling of 655521032 in words is "six hundred fifty-five million, five hundred twenty-one thousand, thirty-two".