16122725 has 6 divisors (see below), whose sum is σ = 19992210. Its totient is φ = 12898160.

The previous prime is 16122703. The next prime is 16122737. The reversal of 16122725 is 52722161.

16122725 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 5612161 + 10510564 = 2369^2 + 3242^2 .

It is not a de Polignac number, because 16122725 - 2¹⁰ = 16121701 is a prime.

It is a super-2 number, since 2×16122725² = 519884522851250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16122694 and 16122703.

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, 322430 + ... + 322479.

It is an arithmetic number, because the mean of its divisors is an integer number (3332035).

Almost surely, 2^16122725 is an apocalyptic number.

It is an amenable number.

16122725 is a deficient number, since it is larger than the sum of its proper divisors (3869485).

16122725 is an equidigital number, since it uses as much as digits as its factorization.

16122725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644919 (or 644914 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 16122725 is about 4015.3113204333. The cubic root of 16122725 is about 252.6268356010.

Adding to 16122725 its reverse (52722161), we get a palindrome (68844886).

The spelling of 16122725 in words is "sixteen million, one hundred twenty-two thousand, seven hundred twenty-five".