1325235552 has 24 divisors (see below), whose sum is σ = 3478743576. Its totient is φ = 441745152.

The previous prime is 1325235529. The next prime is 1325235557. The reversal of 1325235552 is 2555325231.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325235557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6902173 + ... + 6902364.

It is an arithmetic number, because the mean of its divisors is an integer number (144947649).

Almost surely, 2^1325235552 is an apocalyptic number.

1325235552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1325235552 is an abundant number, since it is smaller than the sum of its proper divisors (2153508024).

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

1325235552 is a wasteful number, since it uses less digits than its factorization.

1325235552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13804550 (or 13804542 counting only the distinct ones).

The product of its digits is 45000, while the sum is 33.

The square root of 1325235552 is about 36403.7848581710. The cubic root of 1325235552 is about 1098.4096997634.

It can be divided in two parts, 132523 and 5552, that added together give a triangular number (138075 = T₅₂₅).

The spelling of 1325235552 in words is "one billion, three hundred twenty-five million, two hundred thirty-five thousand, five hundred fifty-two".