522503253 has 12 divisors (see below), whose sum is σ = 754928460. Its totient is φ = 348242496.

The previous prime is 522503239. The next prime is 522503281. The reversal of 522503253 is 352305225.

It can be written as a sum of positive squares in 2 ways, for example, as 172738449 + 349764804 = 13143^2 + 18702^2 .

It is not a de Polignac number, because 522503253 - 2⁹ = 522502741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522503053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52375 + ... + 61547.

It is an arithmetic number, because the mean of its divisors is an integer number (62910705).

Almost surely, 2^522503253 is an apocalyptic number.

It is an amenable number.

522503253 is a deficient number, since it is larger than the sum of its proper divisors (232425207).

522503253 is a wasteful number, since it uses less digits than its factorization.

522503253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15508 (or 15505 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 522503253 is about 22858.3300571148. The cubic root of 522503253 is about 805.4334576470.

Adding to 522503253 its reverse (352305225), we get a palindrome (874808478).

The spelling of 522503253 in words is "five hundred twenty-two million, five hundred three thousand, two hundred fifty-three".