520461087 has 4 divisors (see below), whose sum is σ = 693948120. Its totient is φ = 346974056.

The previous prime is 520461083. The next prime is 520461107. The reversal of 520461087 is 780164025.

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 520461087 - 2² = 520461083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520461083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86743512 + ... + 86743517.

It is an arithmetic number, because the mean of its divisors is an integer number (173487030).

Almost surely, 2^520461087 is an apocalyptic number.

520461087 is a deficient number, since it is larger than the sum of its proper divisors (173487033).

520461087 is a wasteful number, since it uses less digits than its factorization.

520461087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173487032.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 520461087 is about 22813.6162631004. The cubic root of 520461087 is about 804.3827615501.

The spelling of 520461087 in words is "five hundred twenty million, four hundred sixty-one thousand, eighty-seven".