520657067 has 16 divisors (see below), whose sum is σ = 605236992. Its totient is φ = 438657120.

The previous prime is 520657063. The next prime is 520657087. The reversal of 520657067 is 760756025.

It is a cyclic number.

It is not a de Polignac number, because 520657067 - 2² = 520657063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520657067.

It is not an unprimeable number, because it can be changed into a prime (520657061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286592 + ... + 288402.

It is an arithmetic number, because the mean of its divisors is an integer number (37827312).

Almost surely, 2^520657067 is an apocalyptic number.

520657067 is a deficient number, since it is larger than the sum of its proper divisors (84579925).

520657067 is a wasteful number, since it uses less digits than its factorization.

520657067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 520657067 is about 22817.9111007121. The cubic root of 520657067 is about 804.4837125176.

The spelling of 520657067 in words is "five hundred twenty million, six hundred fifty-seven thousand, sixty-seven".