25306253 has 8 divisors (see below), whose sum is σ = 29318208. Its totient is φ = 21393504.

The previous prime is 25306247. The next prime is 25306273. The reversal of 25306253 is 35260352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25306253 - 2⁶ = 25306189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25306223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24251 + ... + 25272.

It is an arithmetic number, because the mean of its divisors is an integer number (3664776).

Almost surely, 2^25306253 is an apocalyptic number.

It is an amenable number.

25306253 is a deficient number, since it is larger than the sum of its proper divisors (4011955).

25306253 is an equidigital number, since it uses as much as digits as its factorization.

25306253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49603.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 25306253 is about 5030.5320792139. The cubic root of 25306253 is about 293.5909168503.

The spelling of 25306253 in words is "twenty-five million, three hundred six thousand, two hundred fifty-three".