653321056 has 24 divisors (see below), whose sum is σ = 1313595360. Its totient is φ = 319709568.

The previous prime is 653321051. The next prime is 653321057. The reversal of 653321056 is 650123356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653321051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215691 + ... + 218698.

It is an arithmetic number, because the mean of its divisors is an integer number (54733140).

Almost surely, 2^653321056 is an apocalyptic number.

It is an amenable number.

653321056 is an abundant number, since it is smaller than the sum of its proper divisors (660274304).

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

653321056 is a wasteful number, since it uses less digits than its factorization.

653321056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434446 (or 434438 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 653321056 is about 25560.1458524790. The cubic root of 653321056 is about 867.7118965693.

The spelling of 653321056 in words is "six hundred fifty-three million, three hundred twenty-one thousand, fifty-six".