648360050 has 54 divisors (see below), whose sum is σ = 1310582133. Its totient is φ = 238530240.

The previous prime is 648360023. The next prime is 648360073. The reversal of 648360050 is 50063846.

It can be written as a sum of positive squares in 14 ways, for example, as 391367089 + 256992961 = 19783^2 + 16031^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=18005.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 648359989 and 648360016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2340512 + ... + 2340788.

Almost surely, 2^648360050 is an apocalyptic number.

648360050 is an abundant number, since it is smaller than the sum of its proper divisors (662222083).

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

648360050 is a wasteful number, since it uses less digits than its factorization.

648360050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 648360050 is about 25462.9151905276. The cubic root of 648360050 is about 865.5099847186.

Multiplying 648360050 by its sum of digits (32), we get a square (20747521600 = 144040²).

The spelling of 648360050 in words is "six hundred forty-eight million, three hundred sixty thousand, fifty".