520160649 has 4 divisors (see below), whose sum is σ = 693547536. Its totient is φ = 346773764.

The previous prime is 520160647. The next prime is 520160651. The reversal of 520160649 is 946061025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (520160647) and next prime (520160651).

It is a cyclic number.

It is not a de Polignac number, because 520160649 - 2¹ = 520160647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520160647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86693439 + ... + 86693444.

It is an arithmetic number, because the mean of its divisors is an integer number (173386884).

Almost surely, 2^520160649 is an apocalyptic number.

It is an amenable number.

520160649 is a deficient number, since it is larger than the sum of its proper divisors (173386887).

520160649 is a wasteful number, since it uses less digits than its factorization.

520160649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173386886.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 520160649 is about 22807.0306923106. The cubic root of 520160649 is about 804.2279541622.

The spelling of 520160649 in words is "five hundred twenty million, one hundred sixty thousand, six hundred forty-nine".