25222105 has 8 divisors (see below), whose sum is σ = 30363912. Its totient is φ = 20112768.

The previous prime is 25222103. The next prime is 25222121. The reversal of 25222105 is 50122252.

It can be written as a sum of positive squares in 4 ways, for example, as 1172889 + 24049216 = 1083^2 + 4904^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25222105 - 2¹ = 25222103 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (25222103) 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 7 ways as a sum of consecutive naturals, for example, 6372 + ... + 9541.

It is an arithmetic number, because the mean of its divisors is an integer number (3795489).

Almost surely, 2^25222105 is an apocalyptic number.

It is an amenable number.

25222105 is a deficient number, since it is larger than the sum of its proper divisors (5141807).

25222105 is a wasteful number, since it uses less digits than its factorization.

25222105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16235.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 25222105 is about 5022.1613872913. The cubic root of 25222105 is about 293.2651406851.

Adding to 25222105 its reverse (50122252), we get a palindrome (75344357).

The spelling of 25222105 in words is "twenty-five million, two hundred twenty-two thousand, one hundred five".