1604122025 has 24 divisors (see below), whose sum is σ = 2284154400. Its totient is φ = 1105228800.

The previous prime is 1604122021. The next prime is 1604122033. The reversal of 1604122025 is 5202214061.

It is a happy number.

It is not a de Polignac number, because 1604122025 - 2² = 1604122021 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1604122021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148280 + ... + 158729.

It is an arithmetic number, because the mean of its divisors is an integer number (95173100).

Almost surely, 2^1604122025 is an apocalyptic number.

It is an amenable number.

1604122025 is a deficient number, since it is larger than the sum of its proper divisors (680032375).

1604122025 is a wasteful number, since it uses less digits than its factorization.

1604122025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307049 (or 307044 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1604122025 is about 40051.4921694561. The cubic root of 1604122025 is about 1170.6106401633.

Adding to 1604122025 its reverse (5202214061), we get a palindrome (6806336086).

The spelling of 1604122025 in words is "one billion, six hundred four million, one hundred twenty-two thousand, twenty-five".