1325533248 has 420 divisors, whose sum is σ = 4555700820. Its totient is φ = 379551744.

The previous prime is 1325533211. The next prime is 1325533283. The reversal of 1325533248 is 8423355231.

1325533248 is a `hidden beast` number, since 1 + 32 + 553 + 32 + 48 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 209438784 + 1116094464 = 14472^2 + 33408^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 14893588 + ... + 14893676.

Almost surely, 2^1325533248 is an apocalyptic number.

1325533248 is a gapful number since it is divisible by the number (18) 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 1325533248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2277850410).

1325533248 is an abundant number, since it is smaller than the sum of its proper divisors (3230167572).

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

1325533248 is a wasteful number, since it uses less digits than its factorization.

1325533248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 124 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 1325533248 is about 36407.8734341900. The cubic root of 1325533248 is about 1098.4919411661.

Adding to 1325533248 its reverse (8423355231), we get a palindrome (9748888479).

The spelling of 1325533248 in words is "one billion, three hundred twenty-five million, five hundred thirty-three thousand, two hundred forty-eight".