1325549568 has 384 divisors, whose sum is σ = 4481568000. Its totient is φ = 346816512.

The previous prime is 1325549567. The next prime is 1325549579. The reversal of 1325549568 is 8659455231.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (48).

Its product of digits (1296000) is a multiple of the sum of its prime factors (100).

It is not an unprimeable number, because it can be changed into a prime (1325549567) 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, 35825646 + ... + 35825682.

It is an arithmetic number, because the mean of its divisors is an integer number (11670750).

Almost surely, 2^1325549568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1325549568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2240784000).

1325549568 is an abundant number, since it is smaller than the sum of its proper divisors (3156018432).

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

1325549568 is an equidigital number, since it uses as much as digits as its factorization.

1325549568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 66 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 48.

The square root of 1325549568 is about 36408.0975608449. The cubic root of 1325549568 is about 1098.4964493681.

The spelling of 1325549568 in words is "one billion, three hundred twenty-five million, five hundred forty-nine thousand, five hundred sixty-eight".