520161567 has 8 divisors (see below), whose sum is σ = 697966896. Its totient is φ = 344565312.

The previous prime is 520161553. The next prime is 520161571. The reversal of 520161567 is 765161025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 520161567 - 2⁸ = 520161311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520161527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551718 + ... + 552659.

It is an arithmetic number, because the mean of its divisors is an integer number (87245862).

Almost surely, 2^520161567 is an apocalyptic number.

520161567 is a deficient number, since it is larger than the sum of its proper divisors (177805329).

520161567 is a wasteful number, since it uses less digits than its factorization.

520161567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104537.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 520161567 is about 22807.0508176748. The cubic root of 520161567 is about 804.2284272730.

The spelling of 520161567 in words is "five hundred twenty million, one hundred sixty-one thousand, five hundred sixty-seven".