1605152325 has 48 divisors (see below), whose sum is σ = 3211401600. Its totient is φ = 690616320.

The previous prime is 1605152293. The next prime is 1605152333. The reversal of 1605152325 is 5232515061.

It is a happy number.

It is not a de Polignac number, because 1605152325 - 2⁵ = 1605152293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1605152292 and 1605152301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81000 + ... + 98849.

It is an arithmetic number, because the mean of its divisors is an integer number (66904200).

Almost surely, 2^1605152325 is an apocalyptic number.

1605152325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1605152325 is an abundant number, since it is smaller than the sum of its proper divisors (1606249275).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1605152325 is a wasteful number, since it uses less digits than its factorization.

1605152325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179886 (or 179881 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 1605152325 is about 40064.3522972729. The cubic root of 1605152325 is about 1170.8612075559.

Adding to 1605152325 its reverse (5232515061), we get a palindrome (6837667386).

The spelling of 1605152325 in words is "one billion, six hundred five million, one hundred fifty-two thousand, three hundred twenty-five".