525404441 has 2 divisors, whose sum is σ = 525404442. Its totient is φ = 525404440.

The previous prime is 525404437. The next prime is 525404471. The reversal of 525404441 is 144404525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446265625 + 79138816 = 21125^2 + 8896^2 .

It is a cyclic number.

It is not a de Polignac number, because 525404441 - 2² = 525404437 is a prime.

It is not a weakly prime, because it can be changed into another prime (525404471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262702220 + 262702221.

It is an arithmetic number, because the mean of its divisors is an integer number (262702221).

Almost surely, 2^525404441 is an apocalyptic number.

It is an amenable number.

525404441 is a deficient number, since it is larger than the sum of its proper divisors (1).

525404441 is an equidigital number, since it uses as much as digits as its factorization.

525404441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 525404441 is about 22921.7024018723. The cubic root of 525404441 is about 806.9214243466.

Adding to 525404441 its reverse (144404525), we get a palindrome (669808966).

The spelling of 525404441 in words is "five hundred twenty-five million, four hundred four thousand, four hundred forty-one".