16144425 has 54 divisors (see below), whose sum is σ = 31837806. Its totient is φ = 7814400.

The previous prime is 16144417. The next prime is 16144451. The reversal of 16144425 is 52444161.

16144425 is a `hidden beast` number, since 1 + 614 + 4 + 42 + 5 = 666.

16144425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1490841 + 14653584 = 1221^2 + 3828^2 .

It is not a de Polignac number, because 16144425 - 2³ = 16144417 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 26929 + ... + 27521.

It is an arithmetic number, because the mean of its divisors is an integer number (589589).

Almost surely, 2^16144425 is an apocalyptic number.

16144425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16144425 is a deficient number, since it is larger than the sum of its proper divisors (15693381).

16144425 is a wasteful number, since it uses less digits than its factorization.

16144425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 612 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 16144425 is about 4018.0125684224. The cubic root of 16144425 is about 252.7401238264.

Adding to 16144425 its reverse (52444161), we get a palindrome (68588586).

It can be divided in two parts, 16 and 144425, that added together give a palindrome (144441).

The spelling of 16144425 in words is "sixteen million, one hundred forty-four thousand, four hundred twenty-five".