16625265 has 16 divisors (see below), whose sum is σ = 27518400. Its totient is φ = 8560832.

The previous prime is 16625261. The next prime is 16625267. The reversal of 16625265 is 56252661.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16625265 - 2² = 16625261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16625261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18675 + ... + 19544.

It is an arithmetic number, because the mean of its divisors is an integer number (1719900).

Almost surely, 2^16625265 is an apocalyptic number.

16625265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16625265 is a deficient number, since it is larger than the sum of its proper divisors (10893135).

16625265 is a wasteful number, since it uses less digits than its factorization.

16625265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38256.

The product of its digits is 21600, while the sum is 33.

The square root of 16625265 is about 4077.4091038305. The cubic root of 16625265 is about 255.2247921673.

It can be divided in two parts, 1 and 6625265, that added together give a palindrome (6625266).

The spelling of 16625265 in words is "sixteen million, six hundred twenty-five thousand, two hundred sixty-five".