648056120 has 32 divisors (see below), whose sum is σ = 1458885600. Its totient is φ = 259087488.

The previous prime is 648056111. The next prime is 648056141. The reversal of 648056120 is 21650846.

It is a congruent number.

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, 115541 + ... + 121019.

It is an arithmetic number, because the mean of its divisors is an integer number (45590175).

Almost surely, 2^648056120 is an apocalyptic number.

It is an amenable number.

648056120 is an abundant number, since it is smaller than the sum of its proper divisors (810829480).

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

648056120 is a wasteful number, since it uses less digits than its factorization.

648056120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8447 (or 8443 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 648056120 is about 25456.9463997550. The cubic root of 648056120 is about 865.3747226503.

The spelling of 648056120 in words is "six hundred forty-eight million, fifty-six thousand, one hundred twenty".