18523252 has 24 divisors (see below), whose sum is σ = 37225440. Its totient is φ = 7976160.

The previous prime is 18523243. The next prime is 18523259. The reversal of 18523252 is 25232581.

It is a super-2 number, since 2×18523252² = 686221729311008, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 18523252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18523259) 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 7 ways as a sum of consecutive naturals, for example, 10243 + ... + 11914.

It is an arithmetic number, because the mean of its divisors is an integer number (1551060).

Almost surely, 2^18523252 is an apocalyptic number.

It is an amenable number.

18523252 is an abundant number, since it is smaller than the sum of its proper divisors (18702188).

18523252 is a wasteful number, since it uses less digits than its factorization.

18523252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22191 (or 22189 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 18523252 is about 4303.8647748274. The cubic root of 18523252 is about 264.5893818748.

The spelling of 18523252 in words is "eighteen million, five hundred twenty-three thousand, two hundred fifty-two".