222716825 has 6 divisors (see below), whose sum is σ = 276168894. Its totient is φ = 178173440.

The previous prime is 222716773. The next prime is 222716827. The reversal of 222716825 is 528617222.

222716825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 6744409 + 215972416 = 2597^2 + 14696^2 .

It is not a de Polignac number, because 222716825 - 2⁶ = 222716761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222716827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4454312 + ... + 4454361.

It is an arithmetic number, because the mean of its divisors is an integer number (46028149).

Almost surely, 2^222716825 is an apocalyptic number.

222716825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222716825 is a deficient number, since it is larger than the sum of its proper divisors (53452069).

222716825 is an equidigital number, since it uses as much as digits as its factorization.

222716825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8908683 (or 8908678 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 222716825 is about 14923.7001108974. The cubic root of 222716825 is about 606.1559077411.

The spelling of 222716825 in words is "two hundred twenty-two million, seven hundred sixteen thousand, eight hundred twenty-five".