523049641 has 2 divisors, whose sum is σ = 523049642. Its totient is φ = 523049640.

The previous prime is 523049621. The next prime is 523049663. The reversal of 523049641 is 146940325.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383337241 + 139712400 = 19579^2 + 11820^2 .

It is a cyclic number.

It is not a de Polignac number, because 523049641 - 2⁹ = 523049129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 523049597 and 523049606.

It is not a weakly prime, because it can be changed into another prime (523049621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261524820 + 261524821.

It is an arithmetic number, because the mean of its divisors is an integer number (261524821).

Almost surely, 2^523049641 is an apocalyptic number.

It is an amenable number.

523049641 is a deficient number, since it is larger than the sum of its proper divisors (1).

523049641 is an equidigital number, since it uses as much as digits as its factorization.

523049641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 523049641 is about 22870.2785509928. The cubic root of 523049641 is about 805.7141103599.

Adding to 523049641 its reverse (146940325), we get a palindrome (669989966).

The spelling of 523049641 in words is "five hundred twenty-three million, forty-nine thousand, six hundred forty-one".