520690895 has 8 divisors (see below), whose sum is σ = 625275504. Its totient is φ = 416255104.

The previous prime is 520690879. The next prime is 520690901. The reversal of 520690895 is 598096025.

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

It is a cyclic number.

It is not a de Polignac number, because 520690895 - 2⁴ = 520690879 is a prime.

It is a super-2 number, since 2×520690895² = 542238016271802050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29354 + ... + 43623.

It is an arithmetic number, because the mean of its divisors is an integer number (78159438).

Almost surely, 2^520690895 is an apocalyptic number.

520690895 is a deficient number, since it is larger than the sum of its proper divisors (104584609).

520690895 is a wasteful number, since it uses less digits than its factorization.

520690895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74409.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 520690895 is about 22818.6523484626. The cubic root of 520690895 is about 804.5011350448.

The spelling of 520690895 in words is "five hundred twenty million, six hundred ninety thousand, eight hundred ninety-five".