520129355 has 8 divisors (see below), whose sum is σ = 645678000. Its totient is φ = 401754976.

The previous prime is 520129301. The next prime is 520129369. The reversal of 520129355 is 553921025.

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 520129355 - 2¹⁸ = 519867211 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1793405 + ... + 1793694.

It is an arithmetic number, because the mean of its divisors is an integer number (80709750).

Almost surely, 2^520129355 is an apocalyptic number.

520129355 is a deficient number, since it is larger than the sum of its proper divisors (125548645).

520129355 is a wasteful number, since it uses less digits than its factorization.

520129355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3587133.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 520129355 is about 22806.3446216179. The cubic root of 520129355 is about 804.2118258024.

The spelling of 520129355 in words is "five hundred twenty million, one hundred twenty-nine thousand, three hundred fifty-five".