520242155 has 12 divisors (see below), whose sum is σ = 645084576. Its totient is φ = 402764400.

The previous prime is 520242101. The next prime is 520242161. The reversal of 520242155 is 551242025.

It is not a de Polignac number, because 520242155 - 2²⁴ = 503464939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49331 + ... + 58940.

It is an arithmetic number, because the mean of its divisors is an integer number (53757048).

Almost surely, 2^520242155 is an apocalyptic number.

520242155 is a deficient number, since it is larger than the sum of its proper divisors (124842421).

520242155 is a wasteful number, since it uses less digits than its factorization.

520242155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108338 (or 108307 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 520242155 is about 22808.8174835961. The cubic root of 520242155 is about 804.2699578396.

The spelling of 520242155 in words is "five hundred twenty million, two hundred forty-two thousand, one hundred fifty-five".