520105629 has 8 divisors (see below), whose sum is σ = 696451392. Its totient is φ = 345248480.

The previous prime is 520105627. The next prime is 520105673. The reversal of 520105629 is 926501025.

It is a happy number.

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 520105629 - 2¹ = 520105627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520105596 and 520105605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520105627) 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, 371337 + ... + 372734.

It is an arithmetic number, because the mean of its divisors is an integer number (87056424).

Almost surely, 2^520105629 is an apocalyptic number.

It is an amenable number.

520105629 is a deficient number, since it is larger than the sum of its proper divisors (176345763).

520105629 is a wasteful number, since it uses less digits than its factorization.

520105629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744307.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 520105629 is about 22805.8244534154. The cubic root of 520105629 is about 804.1995974213.

The spelling of 520105629 in words is "five hundred twenty million, one hundred five thousand, six hundred twenty-nine".