16525603 has 2 divisors, whose sum is σ = 16525604. Its totient is φ = 16525602.

The previous prime is 16525601. The next prime is 16525627. The reversal of 16525603 is 30652561.

16525603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16525603 - 2¹ = 16525601 is a prime.

Together with 16525601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16525601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8262801 + 8262802.

It is an arithmetic number, because the mean of its divisors is an integer number (8262802).

Almost surely, 2^16525603 is an apocalyptic number.

16525603 is a deficient number, since it is larger than the sum of its proper divisors (1).

16525603 is an equidigital number, since it uses as much as digits as its factorization.

16525603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 16525603 is about 4065.1694921614. The cubic root of 16525603 is about 254.7137785599.

The spelling of 16525603 in words is "sixteen million, five hundred twenty-five thousand, six hundred three".