523445413 has 2 divisors, whose sum is σ = 523445414. Its totient is φ = 523445412.

The previous prime is 523445399. The next prime is 523445423. The reversal of 523445413 is 314544325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327501409 + 195944004 = 18097^2 + 13998^2 .

It is a cyclic number.

It is not a de Polignac number, because 523445413 - 2¹³ = 523437221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523445423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261722706 + 261722707.

It is an arithmetic number, because the mean of its divisors is an integer number (261722707).

Almost surely, 2^523445413 is an apocalyptic number.

It is an amenable number.

523445413 is a deficient number, since it is larger than the sum of its proper divisors (1).

523445413 is an equidigital number, since it uses as much as digits as its factorization.

523445413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 31.

The square root of 523445413 is about 22878.9294548499. The cubic root of 523445413 is about 805.9172769848.

Adding to 523445413 its reverse (314544325), we get a palindrome (837989738).

The spelling of 523445413 in words is "five hundred twenty-three million, four hundred forty-five thousand, four hundred thirteen".