16003625 has 32 divisors (see below), whose sum is σ = 22194432. Its totient is φ = 11424000.

The previous prime is 16003619. The next prime is 16003633. The reversal of 16003625 is 52630061.

16003625 = 118² + 119² + ... + 367².

It is not a de Polignac number, because 16003625 - 2⁴ = 16003609 is a prime.

It is a super-2 number, since 2×16003625² = 512232026281250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16003625.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141569 + ... + 141681.

It is an arithmetic number, because the mean of its divisors is an integer number (693576).

Almost surely, 2^16003625 is an apocalyptic number.

It is an amenable number.

16003625 is a deficient number, since it is larger than the sum of its proper divisors (6190807).

16003625 is a wasteful number, since it uses less digits than its factorization.

16003625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 16003625 is about 4000.4530993376. The cubic root of 16003625 is about 252.0032385995.

Adding to 16003625 its reverse (52630061), we get a palindrome (68633686).

It can be divided in two parts, 160036 and 25, that added together give a palindrome (160061).

The spelling of 16003625 in words is "sixteen million, three thousand, six hundred twenty-five".