525320441 has 4 divisors (see below), whose sum is σ = 525378384. Its totient is φ = 525262500.

The previous prime is 525320423. The next prime is 525320443. The reversal of 525320441 is 144023525.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 525320441 - 2²⁶ = 458211577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 525320441.

It is not an unprimeable number, because it can be changed into a prime (525320443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12095 + ... + 34596.

It is an arithmetic number, because the mean of its divisors is an integer number (131344596).

Almost surely, 2^525320441 is an apocalyptic number.

It is an amenable number.

525320441 is a deficient number, since it is larger than the sum of its proper divisors (57943).

525320441 is a wasteful number, since it uses less digits than its factorization.

525320441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57942.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 525320441 is about 22919.8700039944. The cubic root of 525320441 is about 806.8784193731.

Adding to 525320441 its reverse (144023525), we get a palindrome (669343966).

The spelling of 525320441 in words is "five hundred twenty-five million, three hundred twenty thousand, four hundred forty-one".