1606435025 has 12 divisors (see below), whose sum is σ = 2145209052. Its totient is φ = 1186290240.

The previous prime is 1606435003. The next prime is 1606435057. The reversal of 1606435025 is 5205346061.

It can be written as a sum of positive squares in 6 ways, for example, as 69089344 + 1537345681 = 8312^2 + 39209^2 .

It is not a de Polignac number, because 1606435025 - 2¹⁸ = 1606172881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1606434982 and 1606435000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2471114 + ... + 2471763.

It is an arithmetic number, because the mean of its divisors is an integer number (178767421).

Almost surely, 2^1606435025 is an apocalyptic number.

It is an amenable number.

1606435025 is a deficient number, since it is larger than the sum of its proper divisors (538774027).

1606435025 is a wasteful number, since it uses less digits than its factorization.

1606435025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4942900 (or 4942895 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1606435025 is about 40080.3570967126. The cubic root of 1606435025 is about 1171.1730084510.

The spelling of 1606435025 in words is "one billion, six hundred six million, four hundred thirty-five thousand, twenty-five".