1601788325 has 24 divisors (see below), whose sum is σ = 2024188896. Its totient is φ = 1257048000.

The previous prime is 1601788319. The next prime is 1601788327. The reversal of 1601788325 is 5238871061.

It is not a de Polignac number, because 1601788325 - 2¹⁶ = 1601722789 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601788327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 674390 + ... + 676760.

It is an arithmetic number, because the mean of its divisors is an integer number (84341204).

Almost surely, 2^1601788325 is an apocalyptic number.

It is an amenable number.

1601788325 is a deficient number, since it is larger than the sum of its proper divisors (422400571).

1601788325 is a wasteful number, since it uses less digits than its factorization.

1601788325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885 (or 2880 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 1601788325 is about 40022.3478196869. The cubic root of 1601788325 is about 1170.0426908717.

The spelling of 1601788325 in words is "one billion, six hundred one million, seven hundred eighty-eight thousand, three hundred twenty-five".