225021255 has 8 divisors (see below), whose sum is σ = 360034032. Its totient is φ = 120011328.

The previous prime is 225021239. The next prime is 225021271. The reversal of 225021255 is 552120522.

It is an interprime number because it is at equal distance from previous prime (225021239) and next prime (225021271).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225021255 - 2⁴ = 225021239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7500694 + ... + 7500723.

It is an arithmetic number, because the mean of its divisors is an integer number (45004254).

Almost surely, 2^225021255 is an apocalyptic number.

225021255 is a deficient number, since it is larger than the sum of its proper divisors (135012777).

225021255 is a wasteful number, since it uses less digits than its factorization.

225021255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15001425.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 225021255 is about 15000.7084832684. The cubic root of 225021255 is about 608.2393511326.

Adding to 225021255 its reverse (552120522), we get a palindrome (777141777).

The spelling of 225021255 in words is "two hundred twenty-five million, twenty-one thousand, two hundred fifty-five".