520489086 has 32 divisors (see below), whose sum is σ = 1124436768. Its totient is φ = 159667200.

The previous prime is 520489063. The next prime is 520489087. The reversal of 520489086 is 680984025.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520489087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16386 + ... + 36186.

It is an arithmetic number, because the mean of its divisors is an integer number (35138649).

Almost surely, 2^520489086 is an apocalyptic number.

520489086 is an abundant number, since it is smaller than the sum of its proper divisors (603947682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520489086 is a wasteful number, since it uses less digits than its factorization.

520489086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20156.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 520489086 is about 22814.2299015329. The cubic root of 520489086 is about 804.3971856250.

The spelling of 520489086 in words is "five hundred twenty million, four hundred eighty-nine thousand, eighty-six".