520222629 has 4 divisors (see below), whose sum is σ = 693630176. Its totient is φ = 346815084.

The previous prime is 520222567. The next prime is 520222721. The reversal of 520222629 is 926222025.

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 not a de Polignac number, because 520222629 - 2¹⁹ = 519698341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520222596 and 520222605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520221629) 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, 86703769 + ... + 86703774.

It is an arithmetic number, because the mean of its divisors is an integer number (173407544).

Almost surely, 2^520222629 is an apocalyptic number.

It is an amenable number.

520222629 is a deficient number, since it is larger than the sum of its proper divisors (173407547).

520222629 is a wasteful number, since it uses less digits than its factorization.

520222629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173407546.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 520222629 is about 22808.3894433605. The cubic root of 520222629 is about 804.2598956204.

The spelling of 520222629 in words is "five hundred twenty million, two hundred twenty-two thousand, six hundred twenty-nine".