18525052 has 24 divisors (see below), whose sum is σ = 39900896. Its totient is φ = 7328448.

The previous prime is 18525047. The next prime is 18525079. The reversal of 18525052 is 25052581.

It is a Harshad number since it is a multiple of its sum of digits (28).

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 18525052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25083 + ... + 25810.

Almost surely, 2^18525052 is an apocalyptic number.

It is an amenable number.

18525052 is an abundant number, since it is smaller than the sum of its proper divisors (21375844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18525052 is a wasteful number, since it uses less digits than its factorization.

18525052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50917 (or 50915 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 18525052 is about 4304.0738841242. The cubic root of 18525052 is about 264.5979521025.

The spelling of 18525052 in words is "eighteen million, five hundred twenty-five thousand, fifty-two".