648051504 has 20 divisors (see below), whose sum is σ = 1674133176. Its totient is φ = 216017152.

The previous prime is 648051493. The next prime is 648051529. The reversal of 648051504 is 405150846.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6750489 + ... + 6750584.

Almost surely, 2^648051504 is an apocalyptic number.

It is an amenable number.

648051504 is an abundant number, since it is smaller than the sum of its proper divisors (1026081672).

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

648051504 is a wasteful number, since it uses less digits than its factorization.

648051504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13501084 (or 13501078 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 648051504 is about 25456.8557367166. The cubic root of 648051504 is about 865.3726680036.

The spelling of 648051504 in words is "six hundred forty-eight million, fifty-one thousand, five hundred four".