520166055 has 32 divisors (see below), whose sum is σ = 859693824. Its totient is φ = 268402176.

The previous prime is 520166039. The next prime is 520166111. The reversal of 520166055 is 550661025.

It is not a de Polignac number, because 520166055 - 2⁴ = 520166039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65247 + ... + 72783.

It is an arithmetic number, because the mean of its divisors is an integer number (26865432).

Almost surely, 2^520166055 is an apocalyptic number.

520166055 is a deficient number, since it is larger than the sum of its proper divisors (339527769).

520166055 is a wasteful number, since it uses less digits than its factorization.

520166055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7695.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 520166055 is about 22807.1492080882. The cubic root of 520166055 is about 804.2307402510.

The spelling of 520166055 in words is "five hundred twenty million, one hundred sixty-six thousand, fifty-five".