521294041 has 2 divisors, whose sum is σ = 521294042. Its totient is φ = 521294040.

The previous prime is 521294029. The next prime is 521294083. The reversal of 521294041 is 140492125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 514382400 + 6911641 = 22680^2 + 2629^2 .

It is a cyclic number.

It is not a de Polignac number, because 521294041 - 2⁵ = 521294009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (521204041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260647020 + 260647021.

It is an arithmetic number, because the mean of its divisors is an integer number (260647021).

Almost surely, 2^521294041 is an apocalyptic number.

It is an amenable number.

521294041 is a deficient number, since it is larger than the sum of its proper divisors (1).

521294041 is an equidigital number, since it uses as much as digits as its factorization.

521294041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 521294041 is about 22831.8645975312. The cubic root of 521294041 is about 804.8116483836.

The spelling of 521294041 in words is "five hundred twenty-one million, two hundred ninety-four thousand, forty-one".