16275725 has 6 divisors (see below), whose sum is σ = 20181930. Its totient is φ = 13020560.

The previous prime is 16275709. The next prime is 16275733. The reversal of 16275725 is 52757261.

It is a happy number.

16275725 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 609961 + 15665764 = 781^2 + 3958^2 .

It is not a de Polignac number, because 16275725 - 2⁴ = 16275709 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 325490 + ... + 325539.

It is an arithmetic number, because the mean of its divisors is an integer number (3363655).

Almost surely, 2^16275725 is an apocalyptic number.

It is an amenable number.

16275725 is a deficient number, since it is larger than the sum of its proper divisors (3906205).

16275725 is an equidigital number, since it uses as much as digits as its factorization.

16275725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651039 (or 651034 counting only the distinct ones).

The product of its digits is 29400, while the sum is 35.

The square root of 16275725 is about 4034.3184058773. The cubic root of 16275725 is about 253.4234395921.

It can be divided in two parts, 1 and 6275725, that added together give a palindrome (6275726).

The spelling of 16275725 in words is "sixteen million, two hundred seventy-five thousand, seven hundred twenty-five".