22051025 has 12 divisors (see below), whose sum is σ = 27675312. Its totient is φ = 17426640.

The previous prime is 22051019. The next prime is 22051061. The reversal of 22051025 is 52015022.

It is not a de Polignac number, because 22051025 - 2⁴ = 22051009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22050994 and 22051012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3239 + ... + 7388.

It is an arithmetic number, because the mean of its divisors is an integer number (2306276).

Almost surely, 2^22051025 is an apocalyptic number.

22051025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22051025 is a deficient number, since it is larger than the sum of its proper divisors (5624287).

22051025 is a wasteful number, since it uses less digits than its factorization.

22051025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10720 (or 10715 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 22051025 is about 4695.8518928944. The cubic root of 22051025 is about 280.4203931639.

Adding to 22051025 its reverse (52015022), we get a palindrome (74066047).

The spelling of 22051025 in words is "twenty-two million, fifty-one thousand, twenty-five".