520538441 has 2 divisors, whose sum is σ = 520538442. Its totient is φ = 520538440.

The previous prime is 520538423. The next prime is 520538471. The reversal of 520538441 is 144835025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400000000 + 120538441 = 20000^2 + 10979^2 .

It is a cyclic number.

It is not a de Polignac number, because 520538441 - 2²⁶ = 453429577 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 520538398 and 520538407.

It is not a weakly prime, because it can be changed into another prime (520538411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260269220 + 260269221.

It is an arithmetic number, because the mean of its divisors is an integer number (260269221).

Almost surely, 2^520538441 is an apocalyptic number.

It is an amenable number.

520538441 is a deficient number, since it is larger than the sum of its proper divisors (1).

520538441 is an equidigital number, since it uses as much as digits as its factorization.

520538441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 520538441 is about 22815.3115472921. The cubic root of 520538441 is about 804.4226102812.

The spelling of 520538441 in words is "five hundred twenty million, five hundred thirty-eight thousand, four hundred forty-one".