225042555 has 16 divisors (see below), whose sum is σ = 379019520. Its totient is φ = 113705568.

The previous prime is 225042541. The next prime is 225042577. The reversal of 225042555 is 555240522.

It is not a de Polignac number, because 225042555 - 2⁶ = 225042491 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394527 + ... + 395096.

It is an arithmetic number, because the mean of its divisors is an integer number (23688720).

Almost surely, 2^225042555 is an apocalyptic number.

225042555 is a deficient number, since it is larger than the sum of its proper divisors (153976965).

225042555 is a wasteful number, since it uses less digits than its factorization.

225042555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789650.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 225042555 is about 15001.4184329349. The cubic root of 225042555 is about 608.2585420447.

The spelling of 225042555 in words is "two hundred twenty-five million, forty-two thousand, five hundred fifty-five".