16450004025 has 144 divisors (see below), whose sum is σ = 36395142784. Its totient is φ = 6916285440.

The previous prime is 16450004009. The next prime is 16450004069. The reversal of 16450004025 is 52040005461.

It is not a de Polignac number, because 16450004025 - 2⁴ = 16450004009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16450004025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6284517 + ... + 6287133.

Almost surely, 2^16450004025 is an apocalyptic number.

16450004025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16450004025 is an abundant number, since it is smaller than the sum of its proper divisors (19945138759).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16450004025 is a wasteful number, since it uses less digits than its factorization.

16450004025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2960 (or 2952 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 16450004025 its reverse (52040005461), we get a palindrome (68490009486).

The spelling of 16450004025 in words is "sixteen billion, four hundred fifty million, four thousand, twenty-five".