1325648259 has 48 divisors (see below), whose sum is σ = 2176312320. Its totient is φ = 770834880.

The previous prime is 1325648249. The next prime is 1325648293. The reversal of 1325648259 is 9528465231.

1325648259 is a `hidden beast` number, since 1 + 3 + 2 + 564 + 82 + 5 + 9 = 666.

It is not a de Polignac number, because 1325648259 - 2⁵ = 1325648227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1325648209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1535662 + ... + 1536524.

It is an arithmetic number, because the mean of its divisors is an integer number (45339840).

Almost surely, 2^1325648259 is an apocalyptic number.

1325648259 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1325648259 is a deficient number, since it is larger than the sum of its proper divisors (850664061).

1325648259 is a wasteful number, since it uses less digits than its factorization.

1325648259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592 (or 1589 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 1325648259 is about 36409.4528797124. The cubic root of 1325648259 is about 1098.5237107710.

The spelling of 1325648259 in words is "one billion, three hundred twenty-five million, six hundred forty-eight thousand, two hundred fifty-nine".