1606525 has 12 divisors (see below), whose sum is σ = 2008800. Its totient is φ = 1274480.

The previous prime is 1606499. The next prime is 1606529. The reversal of 1606525 is 5256061.

It is a de Polignac number, because none of the positive numbers 2^k-1606525 is a prime.

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

1606525 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1606525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4296 + ... + 4654.

It is an arithmetic number, because the mean of its divisors is an integer number (167400).

2^1606525 is an apocalyptic number.

It is an amenable number.

1606525 is a deficient number, since it is larger than the sum of its proper divisors (402275).

1606525 is a wasteful number, since it uses less digits than its factorization.

1606525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1606525 is about 1267.4876725239. The cubic root of 1606525 is about 117.1194873496.

1606525 divided by its sum of digits (25) gives a triangular number (64261 = T₃₅₈).

The spelling of 1606525 in words is "one million, six hundred six thousand, five hundred twenty-five".