4321825 has 12 divisors (see below), whose sum is σ = 5674860. Its totient is φ = 3253760.

The previous prime is 4321817. The next prime is 4321829. The reversal of 4321825 is 5281234.

It can be written as a sum of positive squares in 6 ways, for example, as 305809 + 4016016 = 553^2 + 2004^2 .

It is not a de Polignac number, because 4321825 - 2³ = 4321817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a d-powerful number, because it can be written as 4⁷ + 3⁵ + 2²¹ + 1 + 8⁵ + 2²¹ + 5⁷ .

4321825 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4321825.

It is not an unprimeable number, because it can be changed into a prime (4321829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4660 + ... + 5509.

It is an arithmetic number, because the mean of its divisors is an integer number (472905).

Almost surely, 2^4321825 is an apocalyptic number.

It is an amenable number.

4321825 is a deficient number, since it is larger than the sum of its proper divisors (1353035).

4321825 is a wasteful number, since it uses less digits than its factorization.

4321825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10196 (or 10191 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 4321825 is about 2078.8999494925. The cubic root of 4321825 is about 162.8879880824.

The spelling of 4321825 in words is "four million, three hundred twenty-one thousand, eight hundred twenty-five".