520457064 has 32 divisors (see below), whose sum is σ = 1357715520. Its totient is φ = 165942656.

The previous prime is 520457053. The next prime is 520457083. The reversal of 520457064 is 460754025.

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, 470877 + ... + 471980.

It is an arithmetic number, because the mean of its divisors is an integer number (42428610).

Almost surely, 2^520457064 is an apocalyptic number.

It is an amenable number.

520457064 is an abundant number, since it is smaller than the sum of its proper divisors (837258456).

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

520457064 is a wasteful number, since it uses less digits than its factorization.

520457064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942889 (or 942885 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 520457064 is about 22813.5280919020. The cubic root of 520457064 is about 804.3806890031.

The spelling of 520457064 in words is "five hundred twenty million, four hundred fifty-seven thousand, sixty-four".