18725283 has 8 divisors (see below), whose sum is σ = 27741200. Its totient is φ = 12483504.

The previous prime is 18725281. The next prime is 18725309. The reversal of 18725283 is 38252781.

It is not a de Polignac number, because 18725283 - 2¹ = 18725281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18725281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346738 + ... + 346791.

It is an arithmetic number, because the mean of its divisors is an integer number (3467650).

Almost surely, 2^18725283 is an apocalyptic number.

18725283 is a deficient number, since it is larger than the sum of its proper divisors (9015917).

18725283 is an equidigital number, since it uses as much as digits as its factorization.

18725283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693538 (or 693532 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 18725283 is about 4327.2720043926. The cubic root of 18725283 is about 265.5478543764.

The spelling of 18725283 in words is "eighteen million, seven hundred twenty-five thousand, two hundred eighty-three".