16225887 has 16 divisors (see below), whose sum is σ = 22014720. Its totient is φ = 10629312.

The previous prime is 16225861. The next prime is 16225903. The reversal of 16225887 is 78852261.

It is not a de Polignac number, because 16225887 - 2⁶ = 16225823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16225087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69523 + ... + 69755.

It is an arithmetic number, because the mean of its divisors is an integer number (1375920).

Almost surely, 2^16225887 is an apocalyptic number.

16225887 is a deficient number, since it is larger than the sum of its proper divisors (5788833).

16225887 is a wasteful number, since it uses less digits than its factorization.

16225887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542.

The product of its digits is 53760, while the sum is 39.

The square root of 16225887 is about 4028.1369142570. The cubic root of 16225887 is about 253.1645052805.

The spelling of 16225887 in words is "sixteen million, two hundred twenty-five thousand, eight hundred eighty-seven".