225540452 has 12 divisors (see below), whose sum is σ = 395544240. Its totient is φ = 112527816.

The previous prime is 225540449. The next prime is 225540463. The reversal of 225540452 is 254045522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58502 + ... + 62237.

It is an arithmetic number, because the mean of its divisors is an integer number (32962020).

Almost surely, 2^225540452 is an apocalyptic number.

It is an amenable number.

225540452 is a deficient number, since it is larger than the sum of its proper divisors (170003788).

225540452 is a wasteful number, since it uses less digits than its factorization.

225540452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121210 (or 121208 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 225540452 is about 15018.0042615522. The cubic root of 225540452 is about 608.7067936059.

Adding to 225540452 its reverse (254045522), we get a palindrome (479585974).

The spelling of 225540452 in words is "two hundred twenty-five million, five hundred forty thousand, four hundred fifty-two".