25222133 has 4 divisors (see below), whose sum is σ = 25237548. Its totient is φ = 25206720.

The previous prime is 25222129. The next prime is 25222151. The reversal of 25222133 is 33122252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7091569 + 18130564 = 2663^2 + 4258^2 .

It is a cyclic number.

It is not a de Polignac number, because 25222133 - 2² = 25222129 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25222103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4916 + ... + 8637.

It is an arithmetic number, because the mean of its divisors is an integer number (6309387).

Almost surely, 2^25222133 is an apocalyptic number.

It is an amenable number.

25222133 is a deficient number, since it is larger than the sum of its proper divisors (15415).

25222133 is a wasteful number, since it uses less digits than its factorization.

25222133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15414.

The product of its digits is 720, while the sum is 20.

The square root of 25222133 is about 5022.1641749349. The cubic root of 25222133 is about 293.2652492066.

Adding to 25222133 its reverse (33122252), we get a palindrome (58344385).

The spelling of 25222133 in words is "twenty-five million, two hundred twenty-two thousand, one hundred thirty-three".