520187167 has 4 divisors (see below), whose sum is σ = 520956216. Its totient is φ = 519418120.

The previous prime is 520187093. The next prime is 520187191. The reversal of 520187167 is 761781025.

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

It is a cyclic number.

It is not a de Polignac number, because 520187167 - 2²³ = 511798559 is a prime.

It is a super-2 number, since 2×520187167² = 541189377422971778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520187867) 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, 383509 + ... + 384862.

It is an arithmetic number, because the mean of its divisors is an integer number (130239054).

Almost surely, 2^520187167 is an apocalyptic number.

520187167 is a deficient number, since it is larger than the sum of its proper divisors (769049).

520187167 is an equidigital number, since it uses as much as digits as its factorization.

520187167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769048.

The product of its (nonzero) digits is 23520, while the sum is 37.

The square root of 520187167 is about 22807.6120407201. The cubic root of 520187167 is about 804.2416205520.

The spelling of 520187167 in words is "five hundred twenty million, one hundred eighty-seven thousand, one hundred sixty-seven".