648482520 has 64 divisors (see below), whose sum is σ = 2223371520. Its totient is φ = 148224384.

The previous prime is 648482501. The next prime is 648482537. The reversal of 648482520 is 25284846.

648482520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385162 + ... + 386841.

It is an arithmetic number, because the mean of its divisors is an integer number (34740180).

Almost surely, 2^648482520 is an apocalyptic number.

648482520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

648482520 is an abundant number, since it is smaller than the sum of its proper divisors (1574889000).

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

648482520 is a wasteful number, since it uses less digits than its factorization.

648482520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772024 (or 772020 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 648482520 is about 25465.3199469396. The cubic root of 648482520 is about 865.5644772466.

The spelling of 648482520 in words is "six hundred forty-eight million, four hundred eighty-two thousand, five hundred twenty".