18696525 has 12 divisors (see below), whose sum is σ = 30911712. Its totient is φ = 9971440.

The previous prime is 18696523. The next prime is 18696547. The reversal of 18696525 is 52569681.

It is not a de Polignac number, because 18696525 - 2¹ = 18696523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18696521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124569 + ... + 124718.

It is an arithmetic number, because the mean of its divisors is an integer number (2575976).

Almost surely, 2^18696525 is an apocalyptic number.

18696525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18696525 is a deficient number, since it is larger than the sum of its proper divisors (12215187).

18696525 is a wasteful number, since it uses less digits than its factorization.

18696525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249300 (or 249295 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The square root of 18696525 is about 4323.9478488992. The cubic root of 18696525 is about 265.4118432956.

The spelling of 18696525 in words is "eighteen million, six hundred ninety-six thousand, five hundred twenty-five".