648455512 has 16 divisors (see below), whose sum is σ = 1217013840. Its totient is φ = 323918496.

The previous prime is 648455459. The next prime is 648455519. The reversal of 648455512 is 215554846.

It is a super-3 number, since 3×648455512³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648455519) 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, 29623 + ... + 46630.

It is an arithmetic number, because the mean of its divisors is an integer number (76063365).

Almost surely, 2^648455512 is an apocalyptic number.

It is an amenable number.

648455512 is a deficient number, since it is larger than the sum of its proper divisors (568558328).

648455512 is a wasteful number, since it uses less digits than its factorization.

648455512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77322 (or 77318 counting only the distinct ones).

The product of its digits is 192000, while the sum is 40.

The square root of 648455512 is about 25464.7896515954. The cubic root of 648455512 is about 865.5524607366.

The spelling of 648455512 in words is "six hundred forty-eight million, four hundred fifty-five thousand, five hundred twelve".