22605825 has 72 divisors (see below), whose sum is σ = 42747264. Its totient is φ = 10524800.

The previous prime is 22605823. The next prime is 22605827. The reversal of 22605825 is 52850622.

It is an interprime number because it is at equal distance from previous prime (22605823) and next prime (22605827).

It is not a de Polignac number, because 22605825 - 2¹ = 22605823 is a prime.

It is a super-2 number, since 2×22605825² = 1022046647861250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22605792 and 22605801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22605823) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 426499 + ... + 426551.

It is an arithmetic number, because the mean of its divisors is an integer number (593712).

Almost surely, 2^22605825 is an apocalyptic number.

22605825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22605825 is a deficient number, since it is larger than the sum of its proper divisors (20141439).

22605825 is a wasteful number, since it uses less digits than its factorization.

22605825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 22605825 is about 4754.5583391100. The cubic root of 22605825 is about 282.7527171846.

The spelling of 22605825 in words is "twenty-two million, six hundred five thousand, eight hundred twenty-five".