16025028100 has 27 divisors (see below), whose sum is σ = 34777058197. Its totient is φ = 6409504880.

The previous prime is 16025028067. The next prime is 16025028101. The reversal of 16025028100 is 182052061.

The square root of 16025028100 is 126590.

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

It can be written as a sum of positive squares in only one way, i.e., 5769010116 + 10256017984 = 75954^2 + 101272^2 .

It is a super-2 number, since 2×16025028100² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16025028101) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1259571 + ... + 1272229.

Almost surely, 2^16025028100 is an apocalyptic number.

16025028100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16025028100 is the 126590-th square number.

It is an amenable number.

16025028100 is an abundant number, since it is smaller than the sum of its proper divisors (18752030097).

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

16025028100 is an frugal number, since it uses more digits than its factorization.

16025028100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25332 (or 12666 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Multiplying 16025028100 by its sum of digits (25), we get a square (400625702500 = 632950²).

16025028100 divided by its sum of digits (25) gives a square (641001124 = 25318²).

The spelling of 16025028100 in words is "sixteen billion, twenty-five million, twenty-eight thousand, one hundred".