1325939500 has 48 divisors (see below), whose sum is σ = 2903191200. Its totient is φ = 529032000.

The previous prime is 1325939449. The next prime is 1325939501. The reversal of 1325939500 is 59395231.

It is a self number, because there is not a number n which added to its sum of digits gives 1325939500.

It is not an unprimeable number, because it can be changed into a prime (1325939501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207351 + ... + 213649.

It is an arithmetic number, because the mean of its divisors is an integer number (60483150).

Almost surely, 2^1325939500 is an apocalyptic number.

1325939500 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 1325939500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451595600).

1325939500 is an abundant number, since it is smaller than the sum of its proper divisors (1577251700).

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

1325939500 is a wasteful number, since it uses less digits than its factorization.

1325939500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6739 (or 6727 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 37.

The square root of 1325939500 is about 36413.4521845979. The cubic root of 1325939500 is about 1098.6041523500.

The spelling of 1325939500 in words is "one billion, three hundred twenty-five million, nine hundred thirty-nine thousand, five hundred".