648052524 has 72 divisors (see below), whose sum is σ = 1889407520. Its totient is φ = 183451392.

The previous prime is 648052523. The next prime is 648052541. The reversal of 648052524 is 425250846.

It is a happy number.

648052524 is a `hidden beast` number, since 6 + 4 + 80 + 52 + 524 = 666.

648052524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (648052523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15672 + ... + 39264.

Almost surely, 2^648052524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648052524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (944703760).

648052524 is an abundant number, since it is smaller than the sum of its proper divisors (1241354996).

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

648052524 is a wasteful number, since it uses less digits than its factorization.

648052524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23719 (or 23714 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 648052524 is about 25456.8757706047. The cubic root of 648052524 is about 865.3731220208.

The spelling of 648052524 in words is "six hundred forty-eight million, fifty-two thousand, five hundred twenty-four".