16011025 has 24 divisors (see below), whose sum is σ = 21286584. Its totient is φ = 11904000.

The previous prime is 16010999. The next prime is 16011029. The reversal of 16011025 is 52011061.

16011025 = T₈₆ + T₈₇ + ... + T₄₅₈.

It is a happy number.

16011025 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 12 ways, for example, as 82944 + 15928081 = 288^2 + 3991^2 .

It is not a de Polignac number, because 16011025 - 2⁹ = 16010513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16011029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42739 + ... + 43111.

It is an arithmetic number, because the mean of its divisors is an integer number (886941).

Almost surely, 2^16011025 is an apocalyptic number.

It is an amenable number.

16011025 is a deficient number, since it is larger than the sum of its proper divisors (5275559).

16011025 is a wasteful number, since it uses less digits than its factorization.

16011025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 16011025 is about 4001.3778876782. The cubic root of 16011025 is about 252.0420743135.

Adding to 16011025 its reverse (52011061), we get a palindrome (68022086).

The spelling of 16011025 in words is "sixteen million, eleven thousand, twenty-five".