520222493 has 4 divisors (see below), whose sum is σ = 594540000. Its totient is φ = 445904988.

The previous prime is 520222481. The next prime is 520222517. The reversal of 520222493 is 394222025.

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 520222493 - 2¹⁶ = 520156957 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 (520222453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37158743 + ... + 37158756.

It is an arithmetic number, because the mean of its divisors is an integer number (148635000).

Almost surely, 2^520222493 is an apocalyptic number.

It is an amenable number.

520222493 is a deficient number, since it is larger than the sum of its proper divisors (74317507).

520222493 is an equidigital number, since it uses as much as digits as its factorization.

520222493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74317506.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 520222493 is about 22808.3864620012. The cubic root of 520222493 is about 804.2598255355.

The spelling of 520222493 in words is "five hundred twenty million, two hundred twenty-two thousand, four hundred ninety-three".