521052353 has 4 divisors (see below), whose sum is σ = 523963440. Its totient is φ = 518141268.

The previous prime is 521052341. The next prime is 521052359. The reversal of 521052353 is 353250125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 521052353 - 2⁶ = 521052289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (521052359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1455275 + ... + 1455632.

It is an arithmetic number, because the mean of its divisors is an integer number (130990860).

Almost surely, 2^521052353 is an apocalyptic number.

It is an amenable number.

521052353 is a deficient number, since it is larger than the sum of its proper divisors (2911087).

521052353 is a wasteful number, since it uses less digits than its factorization.

521052353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911086.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 521052353 is about 22826.5712055052. The cubic root of 521052353 is about 804.6872506535.

The spelling of 521052353 in words is "five hundred twenty-one million, fifty-two thousand, three hundred fifty-three".