648956502 has 16 divisors (see below), whose sum is σ = 1442125680. Its totient is φ = 216318816.

The previous prime is 648956471. The next prime is 648956509. The reversal of 648956502 is 205659846.

648956502 is a `hidden beast` number, since 6 + 4 + 89 + 565 + 0 + 2 = 666.

648956502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×648956502² = 842289082976152008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648956509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6008803 + ... + 6008910.

It is an arithmetic number, because the mean of its divisors is an integer number (90132855).

Almost surely, 2^648956502 is an apocalyptic number.

648956502 is an abundant number, since it is smaller than the sum of its proper divisors (793169178).

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

648956502 is a wasteful number, since it uses less digits than its factorization.

648956502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12017724 (or 12017718 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 648956502 is about 25474.6246684814. The cubic root of 648956502 is about 865.7753089730.

The spelling of 648956502 in words is "six hundred forty-eight million, nine hundred fifty-six thousand, five hundred two".