520925611 has 4 divisors (see below), whose sum is σ = 551568312. Its totient is φ = 490282912.

The previous prime is 520925563. The next prime is 520925659. The reversal of 520925611 is 116529025.

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

It is an interprime number because it is at equal distance from previous prime (520925563) and next prime (520925659).

It is a cyclic number.

It is not a de Polignac number, because 520925611 - 2¹¹ = 520923563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520925681) 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, 15321325 + ... + 15321358.

It is an arithmetic number, because the mean of its divisors is an integer number (137892078).

Almost surely, 2^520925611 is an apocalyptic number.

520925611 is a deficient number, since it is larger than the sum of its proper divisors (30642701).

520925611 is a wasteful number, since it uses less digits than its factorization.

520925611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30642700.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 520925611 is about 22823.7948422255. The cubic root of 520925611 is about 804.6220006895.

The spelling of 520925611 in words is "five hundred twenty million, nine hundred twenty-five thousand, six hundred eleven".