25926222 has 64 divisors (see below), whose sum is σ = 63659520. Its totient is φ = 6873984.

The previous prime is 25926217. The next prime is 25926223. The reversal of 25926222 is 22262952.

It is a self number, because there is not a number n which added to its sum of digits gives 25926222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25926223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41988 + ... + 42600.

It is an arithmetic number, because the mean of its divisors is an integer number (994680).

Almost surely, 2^25926222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25926222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31829760).

25926222 is an abundant number, since it is smaller than the sum of its proper divisors (37733298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25926222 is a wasteful number, since it uses less digits than its factorization.

25926222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697.

The product of its digits is 8640, while the sum is 30.

The square root of 25926222 is about 5091.7798459871. The cubic root of 25926222 is about 295.9691272281.

The spelling of 25926222 in words is "twenty-five million, nine hundred twenty-six thousand, two hundred twenty-two".