1325889577 has 4 divisors (see below), whose sum is σ = 1326066516. Its totient is φ = 1325712640.

The previous prime is 1325889569. The next prime is 1325889613. The reversal of 1325889577 is 7759885231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7759885231 = 7 ⋅1108555033.

It can be written as a sum of positive squares in 2 ways, for example, as 268599321 + 1057290256 = 16389^2 + 32516^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325889577 - 2³ = 1325889569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1325889557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76708 + ... + 92389.

It is an arithmetic number, because the mean of its divisors is an integer number (331516629).

Almost surely, 2^1325889577 is an apocalyptic number.

It is an amenable number.

1325889577 is a deficient number, since it is larger than the sum of its proper divisors (176939).

1325889577 is an equidigital number, since it uses as much as digits as its factorization.

1325889577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176938.

The product of its digits is 4233600, while the sum is 55.

The square root of 1325889577 is about 36412.7666759888. The cubic root of 1325889577 is about 1098.5903643143.

The spelling of 1325889577 in words is "one billion, three hundred twenty-five million, eight hundred eighty-nine thousand, five hundred seventy-seven".