520357055 has 4 divisors (see below), whose sum is σ = 624428472. Its totient is φ = 416285640.

The previous prime is 520357051. The next prime is 520357073. The reversal of 520357055 is 550753025.

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

It is not a de Polignac number, because 520357055 - 2² = 520357051 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 (520357051) 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, 52035701 + ... + 52035710.

It is an arithmetic number, because the mean of its divisors is an integer number (156107118).

Almost surely, 2^520357055 is an apocalyptic number.

520357055 is a deficient number, since it is larger than the sum of its proper divisors (104071417).

520357055 is a wasteful number, since it uses less digits than its factorization.

520357055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104071416.

The product of its (nonzero) digits is 26250, while the sum is 32.

The square root of 520357055 is about 22811.3361072954. The cubic root of 520357055 is about 804.3291634837.

The spelling of 520357055 in words is "five hundred twenty million, three hundred fifty-seven thousand, fifty-five".