648503512 has 32 divisors (see below), whose sum is σ = 1225944720. Its totient is φ = 321596800.

The previous prime is 648503503. The next prime is 648503533. The reversal of 648503512 is 215305846.

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, 924762 + ... + 925462.

Almost surely, 2^648503512 is an apocalyptic number.

It is an amenable number.

648503512 is a deficient number, since it is larger than the sum of its proper divisors (577441208).

648503512 is a wasteful number, since it uses less digits than its factorization.

648503512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491 (or 1487 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 648503512 is about 25465.7321119971. The cubic root of 648503512 is about 865.5738168627.

The spelling of 648503512 in words is "six hundred forty-eight million, five hundred three thousand, five hundred twelve".