25297222 has 16 divisors (see below), whose sum is σ = 39758400. Its totient is φ = 12055680.

The previous prime is 25297213. The next prime is 25297231. The reversal of 25297222 is 22279252.

It is an interprime number because it is at equal distance from previous prime (25297213) and next prime (25297231).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1822 + ... + 7342.

It is an arithmetic number, because the mean of its divisors is an integer number (2484900).

Almost surely, 2^25297222 is an apocalyptic number.

25297222 is a deficient number, since it is larger than the sum of its proper divisors (14461178).

25297222 is a wasteful number, since it uses less digits than its factorization.

25297222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5631.

The product of its digits is 10080, while the sum is 31.

The square root of 25297222 is about 5029.6343803501. The cubic root of 25297222 is about 293.5559882626. Note that the first 3 decimals are identical.

The spelling of 25297222 in words is "twenty-five million, two hundred ninety-seven thousand, two hundred twenty-two".