18052725 has 24 divisors (see below), whose sum is σ = 31605120. Its totient is φ = 9061120.

The previous prime is 18052721. The next prime is 18052729. The reversal of 18052725 is 52725081.

It is an interprime number because it is at equal distance from previous prime (18052721) and next prime (18052729).

It is not a de Polignac number, because 18052725 - 2² = 18052721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18052692 and 18052701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18052721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5805 + ... + 8354.

It is an arithmetic number, because the mean of its divisors is an integer number (1316880).

Almost surely, 2^18052725 is an apocalyptic number.

18052725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18052725 is a deficient number, since it is larger than the sum of its proper divisors (13552395).

18052725 is a wasteful number, since it uses less digits than its factorization.

18052725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14189 (or 14184 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 18052725 is about 4248.8498443697. The cubic root of 18052725 is about 262.3297762600.

The spelling of 18052725 in words is "eighteen million, fifty-two thousand, seven hundred twenty-five".