520477331 has 8 divisors (see below), whose sum is σ = 578507184. Its totient is φ = 464233120.

The previous prime is 520477319. The next prime is 520477333. The reversal of 520477331 is 133774025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520477331 is a prime.

It is a super-2 number, since 2×520477331² = 541793304169767122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520477333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445796 + ... + 446961.

It is an arithmetic number, because the mean of its divisors is an integer number (72313398).

Almost surely, 2^520477331 is an apocalyptic number.

520477331 is a deficient number, since it is larger than the sum of its proper divisors (58029853).

520477331 is a wasteful number, since it uses less digits than its factorization.

520477331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892821.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 520477331 is about 22813.9722757787. The cubic root of 520477331 is about 804.3911299360.

The spelling of 520477331 in words is "five hundred twenty million, four hundred seventy-seven thousand, three hundred thirty-one".