648577580 has 24 divisors (see below), whose sum is σ = 1556586528. Its totient is φ = 222369408.

The previous prime is 648577571. The next prime is 648577603. The reversal of 648577580 is 85775846.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2316209 + ... + 2316488.

It is an arithmetic number, because the mean of its divisors is an integer number (64857772).

Almost surely, 2^648577580 is an apocalyptic number.

It is an amenable number.

648577580 is an abundant number, since it is smaller than the sum of its proper divisors (908008948).

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

648577580 is a wasteful number, since it uses less digits than its factorization.

648577580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4632713 (or 4632711 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 50.

The square root of 648577580 is about 25467.1863385023. The cubic root of 648577580 is about 865.6067690774.

The spelling of 648577580 in words is "six hundred forty-eight million, five hundred seventy-seven thousand, five hundred eighty".