1325565823 has 4 divisors (see below), whose sum is σ = 1337296608. Its totient is φ = 1313835040.

The previous prime is 1325565817. The next prime is 1325565841. The reversal of 1325565823 is 3285655231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3285655231 = 317 ⋅10364843.

It is a cyclic number.

It is not a de Polignac number, because 1325565823 - 2²⁹ = 788694911 is a prime.

It is a super-2 number, since 2×1325565823² = 3514249502211334658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325565853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5865223 + ... + 5865448.

It is an arithmetic number, because the mean of its divisors is an integer number (334324152).

Almost surely, 2^1325565823 is an apocalyptic number.

1325565823 is a deficient number, since it is larger than the sum of its proper divisors (11730785).

1325565823 is a wasteful number, since it uses less digits than its factorization.

1325565823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11730784.

The product of its digits is 216000, while the sum is 40.

The square root of 1325565823 is about 36408.3207934670. The cubic root of 1325565823 is about 1098.5009395778.

The spelling of 1325565823 in words is "one billion, three hundred twenty-five million, five hundred sixty-five thousand, eight hundred twenty-three".