649325 has 12 divisors (see below), whose sum is σ = 848160. Its totient is φ = 491760.

The previous prime is 649321. The next prime is 649361. The reversal of 649325 is 523946.

649325 = 149² + 150² + ... + 173².

It is not a de Polignac number, because 649325 - 2² = 649321 is a prime.

It is a d-powerful number, because it can be written as 6⁶ + 4 + 3⁵ + 9 + 2¹⁹ + 5⁷ .

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 649325.

It is not an unprimeable number, because it can be changed into a prime (649321) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 209 + ... + 1158.

It is an arithmetic number, because the mean of its divisors is an integer number (70680).

2⁶⁴⁹³²⁵ is an apocalyptic number.

It is an amenable number.

649325 is a deficient number, since it is larger than the sum of its proper divisors (198835).

649325 is a wasteful number, since it uses less digits than its factorization.

649325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396 (or 1391 counting only the distinct ones).

The product of its digits is 6480, while the sum is 29.

The square root of 649325 is about 805.8070488647. The cubic root of 649325 is about 86.5939149488.

It can be divided in two parts, 649 and 325, that multiplied together give a triangular number (210925 = T₆₄₉).

The spelling of 649325 in words is "six hundred forty-nine thousand, three hundred twenty-five".