520666695 has 12 divisors (see below), whose sum is σ = 902489016. Its totient is φ = 277688880.

The previous prime is 520666687. The next prime is 520666703. The reversal of 520666695 is 596666025.

It is an interprime number because it is at equal distance from previous prime (520666687) and next prime (520666703).

It is not a de Polignac number, because 520666695 - 2³ = 520666687 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 11570371 = 520666695 / (5 + 2 + 0 + 6 + 6 + 6 + 6 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 520666695.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5785141 + ... + 5785230.

It is an arithmetic number, because the mean of its divisors is an integer number (75207418).

Almost surely, 2^520666695 is an apocalyptic number.

520666695 is a deficient number, since it is larger than the sum of its proper divisors (381822321).

520666695 is a wasteful number, since it uses less digits than its factorization.

520666695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11570382 (or 11570379 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The square root of 520666695 is about 22818.1220743513. The cubic root of 520666695 is about 804.4886713296.

The spelling of 520666695 in words is "five hundred twenty million, six hundred sixty-six thousand, six hundred ninety-five".