520295855 has 4 divisors (see below), whose sum is σ = 624355032. Its totient is φ = 416236680.

The previous prime is 520295851. The next prime is 520295891. The reversal of 520295855 is 558592025.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 520295855 - 2² = 520295851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520295851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52029581 + ... + 52029590.

It is an arithmetic number, because the mean of its divisors is an integer number (156088758).

Almost surely, 2^520295855 is an apocalyptic number.

520295855 is a deficient number, since it is larger than the sum of its proper divisors (104059177).

520295855 is a wasteful number, since it uses less digits than its factorization.

520295855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104059176.

The product of its (nonzero) digits is 180000, while the sum is 41.

The square root of 520295855 is about 22809.9946295478. The cubic root of 520295855 is about 804.2976294475.

The spelling of 520295855 in words is "five hundred twenty million, two hundred ninety-five thousand, eight hundred fifty-five".