18825575 has 6 divisors (see below), whose sum is σ = 23343744. Its totient is φ = 15060440.

The previous prime is 18825551. The next prime is 18825589. The reversal of 18825575 is 57552881.

It is not a de Polignac number, because 18825575 - 2¹⁸ = 18563431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 376487 + ... + 376536.

It is an arithmetic number, because the mean of its divisors is an integer number (3890624).

Almost surely, 2^18825575 is an apocalyptic number.

18825575 is a deficient number, since it is larger than the sum of its proper divisors (4518169).

18825575 is an equidigital number, since it uses as much as digits as its factorization.

18825575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753033 (or 753028 counting only the distinct ones).

The product of its digits is 112000, while the sum is 41.

The square root of 18825575 is about 4338.8448923648. The cubic root of 18825575 is about 266.0210990104.

The spelling of 18825575 in words is "eighteen million, eight hundred twenty-five thousand, five hundred seventy-five".