325649 has 4 divisors (see below), whose sum is σ = 328164. Its totient is φ = 323136.

The previous prime is 325643. The next prime is 325667. The reversal of 325649 is 946523.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 160000 + 165649 = 400^2 + 407^2 .

It is a cyclic number.

It is not a de Polignac number, because 325649 - 2¹² = 321553 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 3⁷ + 2¹¹ + 6³ + 5 + 4⁹ + 9⁵ .

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 325649.

It is not an unprimeable number, because it can be changed into a prime (325643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052 + ... + 1325.

It is an arithmetic number, because the mean of its divisors is an integer number (82041).

2³²⁵⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

325649 is a deficient number, since it is larger than the sum of its proper divisors (2515).

325649 is a wasteful number, since it uses less digits than its factorization.

325649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514.

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

The square root of 325649 is about 570.6566393200. The cubic root of 325649 is about 68.7991780369.

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

The spelling of 325649 in words is "three hundred twenty-five thousand, six hundred forty-nine".