222478425 has 72 divisors (see below), whose sum is σ = 447929664. Its totient is φ = 104734080.

The previous prime is 222478393. The next prime is 222478441. The reversal of 222478425 is 524874222.

222478425 is a `hidden beast` number, since 2 + 224 + 7 + 8 + 425 = 666.

It is not a de Polignac number, because 222478425 - 2⁵ = 222478393 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222478425.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 65622 + ... + 68928.

Almost surely, 2^222478425 is an apocalyptic number.

222478425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222478425 is an abundant number, since it is smaller than the sum of its proper divisors (225451239).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222478425 is a wasteful number, since it uses less digits than its factorization.

222478425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359 (or 3351 counting only the distinct ones).

The product of its digits is 71680, while the sum is 36.

The square root of 222478425 is about 14915.7106770009. The cubic root of 222478425 is about 605.9395505497.

The spelling of 222478425 in words is "two hundred twenty-two million, four hundred seventy-eight thousand, four hundred twenty-five".