525320343 has 16 divisors (see below), whose sum is σ = 778681600. Its totient is φ = 350020440.

The previous prime is 525320321. The next prime is 525320353. The reversal of 525320343 is 343023525.

It is not a de Polignac number, because 525320343 - 2⁵ = 525320311 is a prime.

It is a super-3 number, since 3×525320343³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525320353) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 58188 + ... + 66606.

It is an arithmetic number, because the mean of its divisors is an integer number (48667600).

Almost surely, 2^525320343 is an apocalyptic number.

525320343 is a deficient number, since it is larger than the sum of its proper divisors (253361257).

525320343 is a wasteful number, since it uses less digits than its factorization.

525320343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10739 (or 10733 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 525320343 is about 22919.8678661113. The cubic root of 525320343 is about 806.8783691980.

Adding to 525320343 its reverse (343023525), we get a palindrome (868343868).

The spelling of 525320343 in words is "five hundred twenty-five million, three hundred twenty thousand, three hundred forty-three".