523520453 has 2 divisors, whose sum is σ = 523520454. Its totient is φ = 523520452.

The previous prime is 523520447. The next prime is 523520461. The reversal of 523520453 is 354025325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438567364 + 84953089 = 20942^2 + 9217^2 .

It is a cyclic number.

It is not a de Polignac number, because 523520453 - 2²⁸ = 255084997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523520353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261760226 + 261760227.

It is an arithmetic number, because the mean of its divisors is an integer number (261760227).

Almost surely, 2^523520453 is an apocalyptic number.

It is an amenable number.

523520453 is a deficient number, since it is larger than the sum of its proper divisors (1).

523520453 is an equidigital number, since it uses as much as digits as its factorization.

523520453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 29.

The square root of 523520453 is about 22880.5693329515. The cubic root of 523520453 is about 805.9557866628.

Adding to 523520453 its reverse (354025325), we get a palindrome (877545778).

The spelling of 523520453 in words is "five hundred twenty-three million, five hundred twenty thousand, four hundred fifty-three".