222897025 has 24 divisors (see below), whose sum is σ = 310605120. Its totient is φ = 157439040.

The previous prime is 222897023. The next prime is 222897061. The reversal of 222897025 is 520798222.

It is not a de Polignac number, because 222897025 - 2¹ = 222897023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222897023) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 7435 + ... + 22384.

It is an arithmetic number, because the mean of its divisors is an integer number (12941880).

Almost surely, 2^222897025 is an apocalyptic number.

222897025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222897025 is a deficient number, since it is larger than the sum of its proper divisors (87708095).

222897025 is a wasteful number, since it uses less digits than its factorization.

222897025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29865 (or 29860 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 222897025 is about 14929.7362669272. The cubic root of 222897025 is about 606.3193437526.

The spelling of 222897025 in words is "two hundred twenty-two million, eight hundred ninety-seven thousand, twenty-five".