520226523 has 16 divisors (see below), whose sum is σ = 772644000. Its totient is φ = 345945600.

The previous prime is 520226507. The next prime is 520226561. The reversal of 520226523 is 325622025.

520226523 is a `hidden beast` number, since 5 + 2 + 0 + 2 + 2 + 652 + 3 = 666.

It is not a de Polignac number, because 520226523 - 2⁴ = 520226507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (520226923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13198 + ... + 34851.

It is an arithmetic number, because the mean of its divisors is an integer number (48290250).

Almost surely, 2^520226523 is an apocalyptic number.

520226523 is a deficient number, since it is larger than the sum of its proper divisors (252417477).

520226523 is a wasteful number, since it uses less digits than its factorization.

520226523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48459 (or 48453 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 520226523 is about 22808.4748065275. The cubic root of 520226523 is about 804.2619023127.

Adding to 520226523 its reverse (325622025), we get a palindrome (845848548).

The spelling of 520226523 in words is "five hundred twenty million, two hundred twenty-six thousand, five hundred twenty-three".