16252516 has 36 divisors (see below), whose sum is σ = 33453756. Its totient is φ = 6888000.

The previous prime is 16252507. The next prime is 16252531. The reversal of 16252516 is 61525261.

It can be written as a sum of positive squares in 2 ways, for example, as 10916416 + 5336100 = 3304^2 + 2310^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19386 + ... + 20206.

It is an arithmetic number, because the mean of its divisors is an integer number (929271).

Almost surely, 2^16252516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16252516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16726878).

16252516 is an abundant number, since it is smaller than the sum of its proper divisors (17201240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16252516 is a wasteful number, since it uses less digits than its factorization.

16252516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940 (or 931 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 16252516 is about 4031.4409334629. The cubic root of 16252516 is about 253.3029226346.

Adding to 16252516 its reverse (61525261), we get a palindrome (77777777).

The spelling of 16252516 in words is "sixteen million, two hundred fifty-two thousand, five hundred sixteen".