16225287 has 16 divisors (see below), whose sum is σ = 23543520. Its totient is φ = 9879552.

The previous prime is 16225283. The next prime is 16225291. The reversal of 16225287 is 78252261.

It is an interprime number because it is at equal distance from previous prime (16225283) and next prime (16225291).

It is not a de Polignac number, because 16225287 - 2² = 16225283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16225283) 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 15 ways as a sum of consecutive naturals, for example, 1639 + ... + 5927.

It is an arithmetic number, because the mean of its divisors is an integer number (1471470).

Almost surely, 2^16225287 is an apocalyptic number.

16225287 is a deficient number, since it is larger than the sum of its proper divisors (7318233).

16225287 is a wasteful number, since it uses less digits than its factorization.

16225287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402.

The product of its digits is 13440, while the sum is 33.

The square root of 16225287 is about 4028.0624374505. The cubic root of 16225287 is about 253.1613847408.

The spelling of 16225287 in words is "sixteen million, two hundred twenty-five thousand, two hundred eighty-seven".