222300725 has 6 divisors (see below), whose sum is σ = 275652930. Its totient is φ = 177840560.

The previous prime is 222300671. The next prime is 222300733. The reversal of 222300725 is 527003222.

It can be written as a sum of positive squares in 3 ways, for example, as 41075281 + 181225444 = 6409^2 + 13462^2 .

It is not a de Polignac number, because 222300725 - 2⁸ = 222300469 is a prime.

It is a super-2 number, since 2×222300725² = 98835224671051250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222300725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4445990 + ... + 4446039.

It is an arithmetic number, because the mean of its divisors is an integer number (45942155).

Almost surely, 2^222300725 is an apocalyptic number.

222300725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222300725 is a deficient number, since it is larger than the sum of its proper divisors (53352205).

222300725 is an equidigital number, since it uses as much as digits as its factorization.

222300725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8892039 (or 8892034 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 222300725 is about 14909.7526807120. The cubic root of 222300725 is about 605.7781803873.

Adding to 222300725 its reverse (527003222), we get a palindrome (749303947).

The spelling of 222300725 in words is "two hundred twenty-two million, three hundred thousand, seven hundred twenty-five".