18849525 has 24 divisors (see below), whose sum is σ = 31497984. Its totient is φ = 9945600.

The previous prime is 18849511. The next prime is 18849527. The reversal of 18849525 is 52594881.

It is a happy number.

It is not a de Polignac number, because 18849525 - 2¹⁴ = 18833141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18849527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5980 + ... + 8570.

It is an arithmetic number, because the mean of its divisors is an integer number (1312416).

Almost surely, 2^18849525 is an apocalyptic number.

18849525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18849525 is a deficient number, since it is larger than the sum of its proper divisors (12648459).

18849525 is a wasteful number, since it uses less digits than its factorization.

18849525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701 (or 2696 counting only the distinct ones).

The product of its digits is 115200, while the sum is 42.

The square root of 18849525 is about 4341.6039662779. The cubic root of 18849525 is about 266.1338623727.

The spelling of 18849525 in words is "eighteen million, eight hundred forty-nine thousand, five hundred twenty-five".