22436825 has 6 divisors (see below), whose sum is σ = 27821694. Its totient is φ = 17949440.

The previous prime is 22436819. The next prime is 22436831. The reversal of 22436825 is 52863422.

It is an interprime number because it is at equal distance from previous prime (22436819) and next prime (22436831).

It can be written as a sum of positive squares in 3 ways, for example, as 262144 + 22174681 = 512^2 + 4709^2 .

It is not a de Polignac number, because 22436825 - 2¹⁴ = 22420441 is a prime.

It is a super-2 number, since 2×22436825² = 1006822232161250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22436791 and 22436800.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 448712 + ... + 448761.

It is an arithmetic number, because the mean of its divisors is an integer number (4636949).

Almost surely, 2^22436825 is an apocalyptic number.

22436825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22436825 is a deficient number, since it is larger than the sum of its proper divisors (5384869).

22436825 is an equidigital number, since it uses as much as digits as its factorization.

22436825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897483 (or 897478 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 22436825 is about 4736.7525795633. The cubic root of 22436825 is about 282.0463389806.

The spelling of 22436825 in words is "twenty-two million, four hundred thirty-six thousand, eight hundred twenty-five".