22206825 has 48 divisors (see below), whose sum is σ = 41247360. Its totient is φ = 11712960.

The previous prime is 22206809. The next prime is 22206827. The reversal of 22206825 is 52860222.

It is not a de Polignac number, because 22206825 - 2⁴ = 22206809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22206827) 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 47 ways as a sum of consecutive naturals, for example, 112627 + ... + 112823.

It is an arithmetic number, because the mean of its divisors is an integer number (859320).

Almost surely, 2^22206825 is an apocalyptic number.

22206825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22206825 is a deficient number, since it is larger than the sum of its proper divisors (19040535).

22206825 is a wasteful number, since it uses less digits than its factorization.

22206825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 22206825 is about 4712.4118028882. The cubic root of 22206825 is about 281.0792741639.

It can be divided in two parts, 2220 and 6825, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 22206825 in words is "twenty-two million, two hundred six thousand, eight hundred twenty-five".