1965706325 has 12 divisors (see below), whose sum is σ = 2659064928. Its totient is φ = 1429604400.

The previous prime is 1965706321. The next prime is 1965706331. The reversal of 1965706325 is 5236075691.

It is not a de Polignac number, because 1965706325 - 2² = 1965706321 is a prime.

It is a super-2 number, since 2×1965706325² = 7728002712290011250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1965706321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3573737 + ... + 3574286.

It is an arithmetic number, because the mean of its divisors is an integer number (221588744).

Almost surely, 2^1965706325 is an apocalyptic number.

It is an amenable number.

1965706325 is a deficient number, since it is larger than the sum of its proper divisors (693358603).

1965706325 is a wasteful number, since it uses less digits than its factorization.

1965706325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7148044 (or 7148039 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 1965706325 is about 44336.2867750559. The cubic root of 1965706325 is about 1252.6782733829.

The spelling of 1965706325 in words is "one billion, nine hundred sixty-five million, seven hundred six thousand, three hundred twenty-five".