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25224 = 2331051
BaseRepresentation
bin110001010001000
31021121020
412022020
51301344
6312440
7133353
oct61210
937536
1025224
1117a51
1212720
13b634
14929a
157719
hex6288

25224 has 16 divisors (see below), whose sum is σ = 63120. Its totient is φ = 8400.

The previous prime is 25219. The next prime is 25229. The reversal of 25224 is 42252.

It is an interprime number because it is at equal distance from previous prime (25219) and next prime (25229).

It is not an unprimeable number, because it can be changed into a prime (25229) by changing a digit.

25224 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502 + ... + 549.

It is an arithmetic number, because the mean of its divisors is an integer number (3945).

225224 is an apocalyptic number.

25224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25224 is an abundant number, since it is smaller than the sum of its proper divisors (37896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31560).

25224 is a wasteful number, since it uses less digits than its factorization.

25224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060 (or 1056 counting only the distinct ones).

The product of its digits is 160, while the sum is 15.

The square root of 25224 is about 158.8206535687. The cubic root of 25224 is about 29.3272485083.

Adding to 25224 its reverse (42252), we get a palindrome (67476).

It can be divided in two parts, 252 and 24, that added together give a triangular number (276 = T23).

The spelling of 25224 in words is "twenty-five thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 24 1051 2102 3153 4204 6306 8408 12612 25224