520468578 has 48 divisors (see below), whose sum is σ = 1336520640. Its totient is φ = 148704336.

The previous prime is 520468573. The next prime is 520468591. The reversal of 520468578 is 875864025.

520468578 is a `hidden beast` number, since 520 + 46 + 85 + 7 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (520468573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73093 + ... + 79896.

It is an arithmetic number, because the mean of its divisors is an integer number (27844180).

Almost surely, 2^520468578 is an apocalyptic number.

520468578 is an abundant number, since it is smaller than the sum of its proper divisors (816052062).

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

520468578 is a wasteful number, since it uses less digits than its factorization.

520468578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153013 (or 153001 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 520468578 is about 22813.7804407775. The cubic root of 520468578 is about 804.3866206938.

The spelling of 520468578 in words is "five hundred twenty million, four hundred sixty-eight thousand, five hundred seventy-eight".