225296878 has 4 divisors (see below), whose sum is σ = 337945320. Its totient is φ = 112648438.

The previous prime is 225296873. The next prime is 225296879. The reversal of 225296878 is 878692522.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225296873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56324218 + ... + 56324221.

It is an arithmetic number, because the mean of its divisors is an integer number (84486330).

Almost surely, 2^225296878 is an apocalyptic number.

225296878 is a deficient number, since it is larger than the sum of its proper divisors (112648442).

225296878 is a wasteful number, since it uses less digits than its factorization.

225296878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112648441.

The product of its digits is 967680, while the sum is 49.

The square root of 225296878 is about 15009.8926711686. The cubic root of 225296878 is about 608.4875889464.

The spelling of 225296878 in words is "two hundred twenty-five million, two hundred ninety-six thousand, eight hundred seventy-eight".