16051530 has 64 divisors (see below), whose sum is σ = 42467328. Its totient is φ = 3850560.

The previous prime is 16051517. The next prime is 16051531. The reversal of 16051530 is 3515061.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16051497 and 16051506.

It is not an unprimeable number, because it can be changed into a prime (16051531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41719 + ... + 42101.

It is an arithmetic number, because the mean of its divisors is an integer number (663552).

Almost surely, 2^16051530 is an apocalyptic number.

16051530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16051530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21233664).

16051530 is an abundant number, since it is smaller than the sum of its proper divisors (26415798).

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

16051530 is a wasteful number, since it uses less digits than its factorization.

16051530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 16051530 is about 4006.4360721220. The cubic root of 16051530 is about 252.2544356365.

Adding to 16051530 its reverse (3515061), we get a palindrome (19566591).

The spelling of 16051530 in words is "sixteen million, fifty-one thousand, five hundred thirty".