520988073 has 4 divisors (see below), whose sum is σ = 694650768. Its totient is φ = 347325380.

The previous prime is 520988071. The next prime is 520988093. The reversal of 520988073 is 370889025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 520988073 - 2¹ = 520988071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520988071) 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, 86831343 + ... + 86831348.

It is an arithmetic number, because the mean of its divisors is an integer number (173662692).

Almost surely, 2^520988073 is an apocalyptic number.

It is an amenable number.

520988073 is a deficient number, since it is larger than the sum of its proper divisors (173662695).

520988073 is a wasteful number, since it uses less digits than its factorization.

520988073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173662694.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 520988073 is about 22825.1631538528. The cubic root of 520988073 is about 804.6541590180.

The spelling of 520988073 in words is "five hundred twenty million, nine hundred eighty-eight thousand, seventy-three".