18753425 has 6 divisors (see below), whose sum is σ = 23254278. Its totient is φ = 15002720.

The previous prime is 18753421. The next prime is 18753433. The reversal of 18753425 is 52435781.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1481089 + 17272336 = 1217^2 + 4156^2 .

It is not a de Polignac number, because 18753425 - 2² = 18753421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18753421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 375044 + ... + 375093.

It is an arithmetic number, because the mean of its divisors is an integer number (3875713).

Almost surely, 2^18753425 is an apocalyptic number.

It is an amenable number.

18753425 is a deficient number, since it is larger than the sum of its proper divisors (4500853).

18753425 is an equidigital number, since it uses as much as digits as its factorization.

18753425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750147 (or 750142 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 18753425 is about 4330.5224857978. The cubic root of 18753425 is about 265.6808173357.

The spelling of 18753425 in words is "eighteen million, seven hundred fifty-three thousand, four hundred twenty-five".