521052011 has 8 divisors (see below), whose sum is σ = 534933504. Its totient is φ = 507287080.

The previous prime is 521052001. The next prime is 521052017. The reversal of 521052011 is 110250125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-521052011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (521052017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20045 + ... + 37998.

It is an arithmetic number, because the mean of its divisors is an integer number (66866688).

Almost surely, 2^521052011 is an apocalyptic number.

521052011 is a deficient number, since it is larger than the sum of its proper divisors (13881493).

521052011 is a wasteful number, since it uses less digits than its factorization.

521052011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58281.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 521052011 is about 22826.5637142343. The cubic root of 521052011 is about 804.6870745976.

The spelling of 521052011 in words is "five hundred twenty-one million, fifty-two thousand, eleven".