18525452 has 12 divisors (see below), whose sum is σ = 35366856. Its totient is φ = 8420640.

The previous prime is 18525449. The next prime is 18525497. The reversal of 18525452 is 25452581.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 210473 + ... + 210560.

It is an arithmetic number, because the mean of its divisors is an integer number (2947238).

Almost surely, 2^18525452 is an apocalyptic number.

It is an amenable number.

18525452 is a deficient number, since it is larger than the sum of its proper divisors (16841404).

18525452 is a wasteful number, since it uses less digits than its factorization.

18525452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421048 (or 421046 counting only the distinct ones).

The product of its digits is 16000, while the sum is 32.

The square root of 18525452 is about 4304.1203514772. The cubic root of 18525452 is about 264.5998565221.

The spelling of 18525452 in words is "eighteen million, five hundred twenty-five thousand, four hundred fifty-two".