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22025 = 52881
BaseRepresentation
bin101011000001001
31010012202
411120021
51201100
6245545
7121133
oct53011
933182
1022025
1115603
12108b5
13a043
148053
1567d5
hex5609

22025 has 6 divisors (see below), whose sum is σ = 27342. Its totient is φ = 17600.

The previous prime is 22013. The next prime is 22027. The reversal of 22025 is 52022.

It can be written as a sum of positive squares in 3 ways, for example, as 121 + 21904 = 11^2 + 148^2 .

It is a sliding number, since 22025 = 6400 + 15625 and 1/6400 + 1/15625 = 0.00022025.

It is not a de Polignac number, because 22025 - 26 = 21961 is a prime.

It is a d-powerful number, because it can be written as 28 + 211 + 0 + 212 + 56 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21997 and 22015.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 22025.

It is not an unprimeable number, because it can be changed into a prime (22027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 416 + ... + 465.

It is an arithmetic number, because the mean of its divisors is an integer number (4557).

222025 is an apocalyptic number.

22025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22025 is a deficient number, since it is larger than the sum of its proper divisors (5317).

22025 is an equidigital number, since it uses as much as digits as its factorization.

22025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 22025 is about 148.4082207966. The cubic root of 22025 is about 28.0310030741.

Adding to 22025 its reverse (52022), we get a palindrome (74047).

The spelling of 22025 in words is "twenty-two thousand, twenty-five".

Divisors: 1 5 25 881 4405 22025