18225835 has 8 divisors (see below), whose sum is σ = 21908880. Its totient is φ = 14555424.

The previous prime is 18225811. The next prime is 18225839. The reversal of 18225835 is 53852281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18225835 - 2⁹ = 18225323 is a prime.

It is a super-2 number, since 2×18225835² = 664362122894450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18225835.

It is not an unprimeable number, because it can be changed into a prime (18225839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381 + ... + 6049.

It is an arithmetic number, because the mean of its divisors is an integer number (2738610).

Almost surely, 2^18225835 is an apocalyptic number.

18225835 is a deficient number, since it is larger than the sum of its proper divisors (3683045).

18225835 is an equidigital number, since it uses as much as digits as its factorization.

18225835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6317.

The product of its digits is 19200, while the sum is 34.

The square root of 18225835 is about 4269.1726364718. The cubic root of 18225835 is about 263.1656153980.

The spelling of 18225835 in words is "eighteen million, two hundred twenty-five thousand, eight hundred thirty-five".