648359536 has 40 divisors (see below), whose sum is σ = 1390875264. Its totient is φ = 290304960.

The previous prime is 648359531. The next prime is 648359561. The reversal of 648359536 is 635953846.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 648359536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648359531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15700 + ... + 39283.

Almost surely, 2^648359536 is an apocalyptic number.

It is an amenable number.

648359536 is an abundant number, since it is smaller than the sum of its proper divisors (742515728).

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

648359536 is a wasteful number, since it uses less digits than its factorization.

648359536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55069 (or 55063 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 49.

The square root of 648359536 is about 25462.9050974157. The cubic root of 648359536 is about 865.5097560020.

The spelling of 648359536 in words is "six hundred forty-eight million, three hundred fifty-nine thousand, five hundred thirty-six".