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BaseRepresentation
bin110001101101101
31021220201
412031231
51303303
6313501
7134131
oct61555
937821
1025453
111813a
1212891
13b77c
1493c1
15781d
hex636d

25453 has 2 divisors, whose sum is σ = 25454. Its totient is φ = 25452.

The previous prime is 25447. The next prime is 25457. The reversal of 25453 is 35452.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21609 + 3844 = 147^2 + 62^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-25453 is a prime.

It is a d-powerful number, because it can be written as 212 + 52 + 45 + 54 + 39 .

It is a self number, because there is not a number n which added to its sum of digits gives 25453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12726 + 12727.

It is an arithmetic number, because the mean of its divisors is an integer number (12727).

225453 is an apocalyptic number.

It is an amenable number.

25453 is a deficient number, since it is larger than the sum of its proper divisors (1).

25453 is an equidigital number, since it uses as much as digits as its factorization.

25453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600, while the sum is 19.

The square root of 25453 is about 159.5399636455. The cubic root of 25453 is about 29.4157319354.

Subtracting 25453 from its reverse (35452), we obtain a palindrome (9999).

It can be divided in two parts, 25 and 453, that multiplied together give a triangular number (11325 = T150).

The spelling of 25453 in words is "twenty-five thousand, four hundred fifty-three".