520867031 has 4 divisors (see below), whose sum is σ = 520914312. Its totient is φ = 520819752.

The previous prime is 520867021. The next prime is 520867037. The reversal of 520867031 is 130768025.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 520867031 - 2⁶ = 520866967 is a prime.

It is a super-2 number, since 2×520867031² = 542604927965509922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520867037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2576 + ... + 32378.

It is an arithmetic number, because the mean of its divisors is an integer number (130228578).

Almost surely, 2^520867031 is an apocalyptic number.

520867031 is a deficient number, since it is larger than the sum of its proper divisors (47281).

520867031 is a wasteful number, since it uses less digits than its factorization.

520867031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47280.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 520867031 is about 22822.5114963275. The cubic root of 520867031 is about 804.5918386582.

The spelling of 520867031 in words is "five hundred twenty million, eight hundred sixty-seven thousand, thirty-one".