521314523 has 2 divisors, whose sum is σ = 521314524. Its totient is φ = 521314522.

The previous prime is 521314517. The next prime is 521314531. The reversal of 521314523 is 325413125.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 521314523 - 2²⁰ = 520265947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 521314492 and 521314501.

It is not a weakly prime, because it can be changed into another prime (521314513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260657261 + 260657262.

It is an arithmetic number, because the mean of its divisors is an integer number (260657262).

Almost surely, 2^521314523 is an apocalyptic number.

521314523 is a deficient number, since it is larger than the sum of its proper divisors (1).

521314523 is an equidigital number, since it uses as much as digits as its factorization.

521314523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 26.

The square root of 521314523 is about 22832.3131329263. The cubic root of 521314523 is about 804.8221887792.

Adding to 521314523 its reverse (325413125), we get a palindrome (846727648).

The spelling of 521314523 in words is "five hundred twenty-one million, three hundred fourteen thousand, five hundred twenty-three".