16525066 has 4 divisors (see below), whose sum is σ = 24787602. Its totient is φ = 8262532.

The previous prime is 16525057. The next prime is 16525073. The reversal of 16525066 is 66052561.

16525066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66052561 = 103 ⋅641287.

It can be written as a sum of positive squares in only one way, i.e., 16524225 + 841 = 4065^2 + 29^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4131265 + ... + 4131268.

Almost surely, 2^16525066 is an apocalyptic number.

16525066 is a deficient number, since it is larger than the sum of its proper divisors (8262536).

16525066 is an equidigital number, since it uses as much as digits as its factorization.

16525066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8262535.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 16525066 is about 4065.1034427183. The cubic root of 16525066 is about 254.7110195525.

The spelling of 16525066 in words is "sixteen million, five hundred twenty-five thousand, sixty-six".