225522252 has 48 divisors (see below), whose sum is σ = 600500320. Its totient is φ = 73141056.

The previous prime is 225522247. The next prime is 225522277. The reversal of 225522252 is 252225522.

It is a super-2 number, since 2×225522252² = 101720572294303008, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24223 + ... + 32214.

Almost surely, 2^225522252 is an apocalyptic number.

It is an amenable number.

225522252 is an abundant number, since it is smaller than the sum of its proper divisors (374978068).

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

225522252 is a wasteful number, since it uses less digits than its factorization.

225522252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56487 (or 56479 counting only the distinct ones).

The product of its digits is 8000, while the sum is 27.

The square root of 225522252 is about 15017.3983099604. The cubic root of 225522252 is about 608.6904199553.

Adding to 225522252 its reverse (252225522), we get a palindrome (477747774).

The spelling of 225522252 in words is "two hundred twenty-five million, five hundred twenty-two thousand, two hundred fifty-two".