521164011 has 8 divisors (see below), whose sum is σ = 694990800. Its totient is φ = 347389952.

The previous prime is 521164003. The next prime is 521164013. The reversal of 521164011 is 110461125.

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

It is a cyclic number.

It is not a de Polignac number, because 521164011 - 2³ = 521164003 is a prime.

It is a super-2 number, since 2×521164011² = 543223852723216242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (521164013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32491 + ... + 45803.

It is an arithmetic number, because the mean of its divisors is an integer number (86873850).

Almost surely, 2^521164011 is an apocalyptic number.

521164011 is a deficient number, since it is larger than the sum of its proper divisors (173826789).

521164011 is a wasteful number, since it uses less digits than its factorization.

521164011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26365.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 521164011 is about 22829.0168645082. The cubic root of 521164011 is about 804.7447262291.

The spelling of 521164011 in words is "five hundred twenty-one million, one hundred sixty-four thousand, eleven".