18765925 has 12 divisors (see below), whose sum is σ = 23766336. Its totient is φ = 14692400.

The previous prime is 18765889. The next prime is 18765949. The reversal of 18765925 is 52956781.

It is not a de Polignac number, because 18765925 - 2¹³ = 18757733 is a prime.

It is a super-2 number, since 2×18765925² = 704319882211250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6811 + ... + 9160.

It is an arithmetic number, because the mean of its divisors is an integer number (1980528).

Almost surely, 2^18765925 is an apocalyptic number.

It is an amenable number.

18765925 is a deficient number, since it is larger than the sum of its proper divisors (5000411).

18765925 is a wasteful number, since it uses less digits than its factorization.

18765925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16028 (or 16023 counting only the distinct ones).

The product of its digits is 151200, while the sum is 43.

The square root of 18765925 is about 4331.9654892439. The cubic root of 18765925 is about 265.7398336242.

The spelling of 18765925 in words is "eighteen million, seven hundred sixty-five thousand, nine hundred twenty-five".