523616441 has 2 divisors, whose sum is σ = 523616442. Its totient is φ = 523616440.

The previous prime is 523616417. The next prime is 523616531. The reversal of 523616441 is 144616325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466387216 + 57229225 = 21596^2 + 7565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523616441 is a prime.

It is a super-3 number, since 3×523616441³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 523616398 and 523616407.

It is not a weakly prime, because it can be changed into another prime (523616411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261808220 + 261808221.

It is an arithmetic number, because the mean of its divisors is an integer number (261808221).

Almost surely, 2^523616441 is an apocalyptic number.

It is an amenable number.

523616441 is a deficient number, since it is larger than the sum of its proper divisors (1).

523616441 is an equidigital number, since it uses as much as digits as its factorization.

523616441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 523616441 is about 22882.6668244766. Note that the first 3 decimals coincide. The cubic root of 523616441 is about 806.0050412531.

The spelling of 523616441 in words is "five hundred twenty-three million, six hundred sixteen thousand, four hundred forty-one".