1325285536 has 48 divisors (see below), whose sum is σ = 2685924360. Its totient is φ = 643230720.

The previous prime is 1325285531. The next prime is 1325285543. The reversal of 1325285536 is 6355825231.

It can be written as a sum of positive squares in 4 ways, for example, as 1118501136 + 206784400 = 33444^2 + 14380^2 .

It is not an unprimeable number, because it can be changed into a prime (1325285531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639510 + ... + 641578.

Almost surely, 2^1325285536 is an apocalyptic number.

1325285536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1325285536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1342962180).

1325285536 is an abundant number, since it is smaller than the sum of its proper divisors (1360638824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1325285536 is a wasteful number, since it uses less digits than its factorization.

1325285536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657 (or 2649 counting only the distinct ones).

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

The square root of 1325285536 is about 36404.4713737200. The cubic root of 1325285536 is about 1098.4235091877.

The spelling of 1325285536 in words is "one billion, three hundred twenty-five million, two hundred eighty-five thousand, five hundred thirty-six".