1325284500 has 96 divisors (see below), whose sum is σ = 3963697920. Its totient is φ = 343843200.

The previous prime is 1325284483. The next prime is 1325284507. The reversal of 1325284500 is 54825231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325284507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43561 + ... + 67439.

It is an arithmetic number, because the mean of its divisors is an integer number (41288520).

Almost surely, 2^1325284500 is an apocalyptic number.

1325284500 is a gapful number since it is divisible by the number (10) 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 1325284500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1981848960).

1325284500 is an abundant number, since it is smaller than the sum of its proper divisors (2638413420).

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

1325284500 is a wasteful number, since it uses less digits than its factorization.

1325284500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23938 (or 23926 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 1325284500 is about 36404.4571446959. The cubic root of 1325284500 is about 1098.4232229683.

The spelling of 1325284500 in words is "one billion, three hundred twenty-five million, two hundred eighty-four thousand, five hundred".