525222 has 12 divisors (see below), whose sum is σ = 1138020. Its totient is φ = 175068.

The previous prime is 525221. The next prime is 525241. The reversal of 525222 is 222525.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 29179 = 525222 / (5 + 2 + 5 + 2 + 2 + 2).

It is an Ulam number.

It is a d-powerful number, because it can be written as 5² + 2⁴ + 2⁸ + 5³ + 2⁹ + 2¹⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 525195 and 525204.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 525222.

It is not an unprimeable number, because it can be changed into a prime (525221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14572 + ... + 14607.

It is an arithmetic number, because the mean of its divisors is an integer number (94835).

2⁵²⁵²²² is an apocalyptic number.

525222 is an abundant number, since it is smaller than the sum of its proper divisors (612798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525222 is a wasteful number, since it uses less digits than its factorization.

525222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29187 (or 29184 counting only the distinct ones).

The product of its digits is 400, while the sum is 18.

The square root of 525222 is about 724.7220156722. The cubic root of 525222 is about 80.6828015293.

Adding to 525222 its reverse (222525), we get a palindrome (747747).

It can be divided in two parts, 525 and 222, that added together give a palindrome (747).

The spelling of 525222 in words is "five hundred twenty-five thousand, two hundred twenty-two".