649552 has 10 divisors (see below), whose sum is σ = 1258538. Its totient is φ = 324768.

The previous prime is 649541. The next prime is 649559. The reversal of 649552 is 255946.

It can be written as a sum of positive squares in only one way, i.e., 646416 + 3136 = 804^2 + 56^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20283 + ... + 20314.

2⁶⁴⁹⁵⁵² is an apocalyptic number.

It is an amenable number.

649552 is a deficient number, since it is larger than the sum of its proper divisors (608986).

649552 is a wasteful number, since it uses less digits than its factorization.

649552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40605 (or 40599 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 649552 is about 805.9478891343. The cubic root of 649552 is about 86.6040046720.

The spelling of 649552 in words is "six hundred forty-nine thousand, five hundred fifty-two".