16525589 has 4 divisors (see below), whose sum is σ = 16591680. Its totient is φ = 16459500.

The previous prime is 16525541. The next prime is 16525601. The reversal of 16525589 is 98552561.

16525589 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16525589 - 2¹² = 16521493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16125589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32669 + ... + 33170.

It is an arithmetic number, because the mean of its divisors is an integer number (4147920).

Almost surely, 2^16525589 is an apocalyptic number.

It is an amenable number.

16525589 is a deficient number, since it is larger than the sum of its proper divisors (66091).

16525589 is an equidigital number, since it uses as much as digits as its factorization.

16525589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66090.

The product of its digits is 108000, while the sum is 41.

The square root of 16525589 is about 4065.1677702156. The cubic root of 16525589 is about 254.7137066312.

The spelling of 16525589 in words is "sixteen million, five hundred twenty-five thousand, five hundred eighty-nine".