5640825 has 12 divisors (see below), whose sum is σ = 9326288. Its totient is φ = 3008400.

The previous prime is 5640823. The next prime is 5640839. The reversal of 5640825 is 5280465.

It is not a de Polignac number, because 5640825 - 2¹ = 5640823 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 5640792 and 5640801.

It is not an unprimeable number, because it can be changed into a prime (5640823) 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, 37531 + ... + 37680.

Almost surely, 2^5640825 is an apocalyptic number.

It is an amenable number.

5640825 is a deficient number, since it is larger than the sum of its proper divisors (3685463).

5640825 is a wasteful number, since it uses less digits than its factorization.

5640825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75224 (or 75219 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 5640825 is about 2375.0421048899. The cubic root of 5640825 is about 178.0112878420.

The spelling of 5640825 in words is "five million, six hundred forty thousand, eight hundred twenty-five".