18465625 has 24 divisors (see below), whose sum is σ = 24373440. Its totient is φ = 13950000.

The previous prime is 18465617. The next prime is 18465637. The reversal of 18465625 is 52656481.

It is not a de Polignac number, because 18465625 - 2³ = 18465617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59220 + ... + 59530.

It is an arithmetic number, because the mean of its divisors is an integer number (1015560).

Almost surely, 2^18465625 is an apocalyptic number.

It is an amenable number.

18465625 is a deficient number, since it is larger than the sum of its proper divisors (5907815).

18465625 is an frugal number, since it uses more digits than its factorization.

18465625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 335 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 18465625 is about 4297.1647629571. The cubic root of 18465625 is about 264.3147121126.

The spelling of 18465625 in words is "eighteen million, four hundred sixty-five thousand, six hundred twenty-five".