648607500 has 150 divisors (see below), whose sum is σ = 2119468428. Its totient is φ = 172908000.

The previous prime is 648607493. The next prime is 648607501. The reversal of 648607500 is 5706846.

It is a happy number.

648607500 is a `hidden beast` number, since 6 + 48 + 607 + 5 + 0 + 0 = 666.

648607500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (150).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (648607501) by changing a digit.

It is a polite number, since it can be written in 49 ways as a sum of consecutive naturals, for example, 200899 + ... + 204101.

Almost surely, 2^648607500 is an apocalyptic number.

648607500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648607500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1059734214).

648607500 is an abundant number, since it is smaller than the sum of its proper divisors (1470860928).

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

648607500 is a wasteful number, since it uses less digits than its factorization.

648607500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239 (or 3213 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 648607500 is about 25467.7737542958. The cubic root of 648607500 is about 865.6200795161.

The spelling of 648607500 in words is "six hundred forty-eight million, six hundred seven thousand, five hundred".