225249838 has 8 divisors (see below), whose sum is σ = 368590680. Its totient is φ = 102386280.

The previous prime is 225249763. The next prime is 225249839. The reversal of 225249838 is 838942522.

225249838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 225249794 and 225249803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225249839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5119293 + ... + 5119336.

It is an arithmetic number, because the mean of its divisors is an integer number (46073835).

Almost surely, 2^225249838 is an apocalyptic number.

225249838 is a deficient number, since it is larger than the sum of its proper divisors (143340842).

225249838 is a wasteful number, since it uses less digits than its factorization.

225249838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10238642.

The product of its digits is 276480, while the sum is 43.

The square root of 225249838 is about 15008.3256228002. The cubic root of 225249838 is about 608.4452370524.

The spelling of 225249838 in words is "two hundred twenty-five million, two hundred forty-nine thousand, eight hundred thirty-eight".