1325025280 has 96 divisors (see below), whose sum is σ = 3219652800. Its totient is φ = 523288576.

The previous prime is 1325025277. The next prime is 1325025313. The reversal of 1325025280 is 825205231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849141 + ... + 850699.

It is an arithmetic number, because the mean of its divisors is an integer number (33538050).

Almost surely, 2^1325025280 is an apocalyptic number.

1325025280 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 1325025280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1609826400).

1325025280 is an abundant number, since it is smaller than the sum of its proper divisors (1894627520).

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

1325025280 is an equidigital number, since it uses as much as digits as its factorization.

1325025280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1325025280 is about 36400.8966922520. The cubic root of 1325025280 is about 1098.3516026649.

The spelling of 1325025280 in words is "one billion, three hundred twenty-five million, twenty-five thousand, two hundred eighty".