18803253 has 8 divisors (see below), whose sum is σ = 28652608. Its totient is φ = 10744704.

The previous prime is 18803231. The next prime is 18803261. The reversal of 18803253 is 35230881.

It is a happy number.

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

It is not a de Polignac number, because 18803253 - 2¹³ = 18795061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18803253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18803053) 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, 447676 + ... + 447717.

It is an arithmetic number, because the mean of its divisors is an integer number (3581576).

Almost surely, 2^18803253 is an apocalyptic number.

It is an amenable number.

18803253 is a deficient number, since it is larger than the sum of its proper divisors (9849355).

18803253 is an equidigital number, since it uses as much as digits as its factorization.

18803253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895403.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 18803253 is about 4336.2717857625. The cubic root of 18803253 is about 265.9159145912.

The spelling of 18803253 in words is "eighteen million, eight hundred three thousand, two hundred fifty-three".