618825 has 24 divisors (see below), whose sum is σ = 1055488. Its totient is φ = 319680.

The previous prime is 618823. The next prime is 618833. The reversal of 618825 is 528816.

It is not a de Polignac number, because 618825 - 2¹ = 618823 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 618792 and 618801.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 618825.

It is not an unprimeable number, because it can be changed into a prime (618823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2664 + ... + 2886.

2⁶¹⁸⁸²⁵ is an apocalyptic number.

It is an amenable number.

618825 is a deficient number, since it is larger than the sum of its proper divisors (436663).

618825 is a wasteful number, since it uses less digits than its factorization.

618825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 268 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 618825 is about 786.6543078125. The cubic root of 618825 is about 85.2162888471.

Subtracting from 618825 its reverse (528816), we obtain a palindrome (90009).

The spelling of 618825 in words is "six hundred eighteen thousand, eight hundred twenty-five".