525443328 has 144 divisors (see below), whose sum is σ = 1636017600. Its totient is φ = 165888000.

The previous prime is 525443291. The next prime is 525443339. The reversal of 525443328 is 823344525.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a junction number, because it is equal to n+sod(n) for n = 525443292 and 525443301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129328 + ... + 133328.

Almost surely, 2^525443328 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 525443328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818008800).

525443328 is an abundant number, since it is smaller than the sum of its proper divisors (1110574272).

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

525443328 is a wasteful number, since it uses less digits than its factorization.

525443328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045 (or 4025 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 525443328 is about 22922.5506434166. The cubic root of 525443328 is about 806.9413315374.

The spelling of 525443328 in words is "five hundred twenty-five million, four hundred forty-three thousand, three hundred twenty-eight".