222026425 has 6 divisors (see below), whose sum is σ = 275312798. Its totient is φ = 177621120.

The previous prime is 222026423. The next prime is 222026503. The reversal of 222026425 is 524620222.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1236544 + 220789881 = 1112^2 + 14859^2 .

It is not a de Polignac number, because 222026425 - 2¹ = 222026423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 8881057 = 222026425 / (2 + 2 + 2 + 0 + 2 + 6 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222026425.

It is not an unprimeable number, because it can be changed into a prime (222026423) 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, 4440504 + ... + 4440553.

Almost surely, 2^222026425 is an apocalyptic number.

222026425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222026425 is a deficient number, since it is larger than the sum of its proper divisors (53286373).

222026425 is an equidigital number, since it uses as much as digits as its factorization.

222026425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8881067 (or 8881062 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 222026425 is about 14900.5511643026. The cubic root of 222026425 is about 605.5289184229.

Adding to 222026425 its reverse (524620222), we get a palindrome (746646647).

The spelling of 222026425 in words is "two hundred twenty-two million, twenty-six thousand, four hundred twenty-five".