520055611 has 4 divisors (see below), whose sum is σ = 531120672. Its totient is φ = 508990552.

The previous prime is 520055563. The next prime is 520055621. The reversal of 520055611 is 116550025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 520055611 - 2¹¹ = 520053563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520055621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5532460 + ... + 5532553.

It is an arithmetic number, because the mean of its divisors is an integer number (132780168).

Almost surely, 2^520055611 is an apocalyptic number.

520055611 is a deficient number, since it is larger than the sum of its proper divisors (11065061).

520055611 is a wasteful number, since it uses less digits than its factorization.

520055611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11065060.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 520055611 is about 22804.7278212216. The cubic root of 520055611 is about 804.1738169242.

The spelling of 520055611 in words is "five hundred twenty million, fifty-five thousand, six hundred eleven".