522135253 has 4 divisors (see below), whose sum is σ = 528744640. Its totient is φ = 515525868.

The previous prime is 522135241. The next prime is 522135293. The reversal of 522135253 is 352531225.

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 522135253 - 2⁹ = 522134741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522135203) 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, 3304575 + ... + 3304732.

It is an arithmetic number, because the mean of its divisors is an integer number (132186160).

Almost surely, 2^522135253 is an apocalyptic number.

It is an amenable number.

522135253 is a deficient number, since it is larger than the sum of its proper divisors (6609387).

522135253 is an equidigital number, since it uses as much as digits as its factorization.

522135253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6609386.

The product of its digits is 9000, while the sum is 28.

The square root of 522135253 is about 22850.2790573770. The cubic root of 522135253 is about 805.2443238168.

Adding to 522135253 its reverse (352531225), we get a palindrome (874666478).

The spelling of 522135253 in words is "five hundred twenty-two million, one hundred thirty-five thousand, two hundred fifty-three".