22045025 has 12 divisors (see below), whose sum is σ = 27972912. Its totient is φ = 17225040.

The previous prime is 22044991. The next prime is 22045087. The reversal of 22045025 is 52054022.

It is not a de Polignac number, because 22045025 - 2⁶ = 22044961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22044988 and 22045006.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9179 + ... + 11328.

It is an arithmetic number, because the mean of its divisors is an integer number (2331076).

Almost surely, 2^22045025 is an apocalyptic number.

22045025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22045025 is a deficient number, since it is larger than the sum of its proper divisors (5927887).

22045025 is a wasteful number, since it uses less digits than its factorization.

22045025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20560 (or 20555 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 22045025 is about 4695.2129877142. The cubic root of 22045025 is about 280.3949570828.

Adding to 22045025 its reverse (52054022), we get a palindrome (74099047).

The spelling of 22045025 in words is "twenty-two million, forty-five thousand, twenty-five".