25723253 has 2 divisors, whose sum is σ = 25723254. Its totient is φ = 25723252.

The previous prime is 25723219. The next prime is 25723259. The reversal of 25723253 is 35232752.

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., 19562929 + 6160324 = 4423^2 + 2482^2 .

It is a cyclic number.

It is not a de Polignac number, because 25723253 - 2⁶ = 25723189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25723259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12861626 + 12861627.

It is an arithmetic number, because the mean of its divisors is an integer number (12861627).

Almost surely, 2^25723253 is an apocalyptic number.

It is an amenable number.

25723253 is a deficient number, since it is larger than the sum of its proper divisors (1).

25723253 is an equidigital number, since it uses as much as digits as its factorization.

25723253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 29.

The square root of 25723253 is about 5071.8096375948. The cubic root of 25723253 is about 295.1947502696.

The spelling of 25723253 in words is "twenty-five million, seven hundred twenty-three thousand, two hundred fifty-three".