520355042355 has 16 divisors (see below), whose sum is σ = 833273064864. Its totient is φ = 277287690240.

The previous prime is 520355042353. The next prime is 520355042369. The reversal of 520355042355 is 553240553025.

It is a happy number.

It is not a de Polignac number, because 520355042355 - 2¹ = 520355042353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520355042353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14669134 + ... + 14704563.

It is an arithmetic number, because the mean of its divisors is an integer number (52079566554).

Almost surely, 2^520355042355 is an apocalyptic number.

520355042355 is a deficient number, since it is larger than the sum of its proper divisors (312918022509).

520355042355 is a wasteful number, since it uses less digits than its factorization.

520355042355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29374886.

The product of its (nonzero) digits is 450000, while the sum is 39.

The spelling of 520355042355 in words is "five hundred twenty billion, three hundred fifty-five million, forty-two thousand, three hundred fifty-five".