521054323 has 2 divisors, whose sum is σ = 521054324. Its totient is φ = 521054322.

The previous prime is 521054321. The next prime is 521054357. The reversal of 521054323 is 323450125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 521054323 - 2¹ = 521054321 is a prime.

Together with 521054321, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (521054321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260527161 + 260527162.

It is an arithmetic number, because the mean of its divisors is an integer number (260527162).

Almost surely, 2^521054323 is an apocalyptic number.

521054323 is a deficient number, since it is larger than the sum of its proper divisors (1).

521054323 is an equidigital number, since it uses as much as digits as its factorization.

521054323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 521054323 is about 22826.6143569299. The cubic root of 521054323 is about 804.6882647755.

The spelling of 521054323 in words is "five hundred twenty-one million, fifty-four thousand, three hundred twenty-three".