655400032 has 24 divisors (see below), whose sum is σ = 1474650576. Its totient is φ = 280885632.

The previous prime is 655400027. The next prime is 655400063. The reversal of 655400032 is 230004556.

It is a congruent number.

It is an unprimeable number.

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, 1462723 + ... + 1463170.

It is an arithmetic number, because the mean of its divisors is an integer number (61443774).

Almost surely, 2^655400032 is an apocalyptic number.

It is an amenable number.

655400032 is an abundant number, since it is smaller than the sum of its proper divisors (819250544).

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

655400032 is a wasteful number, since it uses less digits than its factorization.

655400032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925910 (or 2925902 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 655400032 is about 25600.7818630604. The cubic root of 655400032 is about 868.6313230776.

Adding to 655400032 its reverse (230004556), we get a palindrome (885404588).

The spelling of 655400032 in words is "six hundred fifty-five million, four hundred thousand, thirty-two".