16418025 has 48 divisors (see below), whose sum is σ = 32497920. Its totient is φ = 8078400.

The previous prime is 16418011. The next prime is 16418029. The reversal of 16418025 is 52081461.

It is not a de Polignac number, because 16418025 - 2⁴ = 16418009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 16418025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16418029) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 7840 + ... + 9710.

It is an arithmetic number, because the mean of its divisors is an integer number (677040).

Almost surely, 2^16418025 is an apocalyptic number.

16418025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16418025 is a deficient number, since it is larger than the sum of its proper divisors (16079895).

16418025 is a wasteful number, since it uses less digits than its factorization.

16418025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903 (or 1892 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 16418025 is about 4051.9162133489. The cubic root of 16418025 is about 254.1598648483.

Adding to 16418025 its reverse (52081461), we get a palindrome (68499486).

The spelling of 16418025 in words is "sixteen million, four hundred eighteen thousand, twenty-five".