520074214021 has 8 divisors (see below), whose sum is σ = 526721465600. Its totient is φ = 513428563440.

The previous prime is 520074214013. The next prime is 520074214039. The reversal of 520074214021 is 120412470025.

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 520074214021 - 2³ = 520074214013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520074214061) 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, 260515 + ... + 1052623.

It is an arithmetic number, because the mean of its divisors is an integer number (65840183200).

Almost surely, 2^520074214021 is an apocalyptic number.

It is an amenable number.

520074214021 is a deficient number, since it is larger than the sum of its proper divisors (6647251579).

520074214021 is an equidigital number, since it uses as much as digits as its factorization.

520074214021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800499.

The product of its (nonzero) digits is 4480, while the sum is 28.

Adding to 520074214021 its reverse (120412470025), we get a palindrome (640486684046).

The spelling of 520074214021 in words is "five hundred twenty billion, seventy-four million, two hundred fourteen thousand, twenty-one".