18125265 has 32 divisors (see below), whose sum is σ = 30606336. Its totient is φ = 9141440.

The previous prime is 18125251. The next prime is 18125267. The reversal of 18125265 is 56252181.

It is not a de Polignac number, because 18125265 - 2⁶ = 18125201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18125267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36670 + ... + 37160.

It is an arithmetic number, because the mean of its divisors is an integer number (956448).

Almost surely, 2^18125265 is an apocalyptic number.

18125265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18125265 is a deficient number, since it is larger than the sum of its proper divisors (12481071).

18125265 is a wasteful number, since it uses less digits than its factorization.

18125265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629.

The product of its digits is 4800, while the sum is 30.

The square root of 18125265 is about 4257.3777140395. The cubic root of 18125265 is about 262.6806738030.

The spelling of 18125265 in words is "eighteen million, one hundred twenty-five thousand, two hundred sixty-five".