525330240 has 224 divisors, whose sum is σ = 1781982720. Its totient is φ = 130738176.

The previous prime is 525330203. The next prime is 525330251. The reversal of 525330240 is 42033525.

It is a super-2 number, since 2×525330240² = 551943722116915200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 525330240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1513747 + ... + 1514093.

It is an arithmetic number, because the mean of its divisors is an integer number (7955280).

Almost surely, 2^525330240 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 525330240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (890991360).

525330240 is an abundant number, since it is smaller than the sum of its proper divisors (1256652480).

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

525330240 is a wasteful number, since it uses less digits than its factorization.

525330240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 525330240 is about 22920.0837694804. The cubic root of 525330240 is about 806.8834363442.

Adding to 525330240 its reverse (42033525), we get a palindrome (567363765).

The spelling of 525330240 in words is "five hundred twenty-five million, three hundred thirty thousand, two hundred forty".