16250385529 has 9 divisors (see below), whose sum is σ = 18904547781. Its totient is φ = 13928137020.

The previous prime is 16250385521. The next prime is 16250385539. The reversal of 16250385529 is 92558305261.

The square root of 16250385529 is 127477.

It is a perfect power (a square), and thus also a powerful number.

16250385529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16250385529 - 2³ = 16250385521 is a prime.

It is a super-2 number, since 2×16250385529² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16250385521) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 883234 + ... + 901444.

It is an arithmetic number, because the mean of its divisors is an integer number (2100505309).

Almost surely, 2^16250385529 is an apocalyptic number.

16250385529 is the 127477-th square number.

16250385529 is the 63739-th centered octagonal number.

It is an amenable number.

16250385529 is a deficient number, since it is larger than the sum of its proper divisors (2654162252).

16250385529 is an frugal number, since it uses more digits than its factorization.

16250385529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36436 (or 18218 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 16250385529 in words is "sixteen billion, two hundred fifty million, three hundred eighty-five thousand, five hundred twenty-nine".