25255229 has 4 divisors (see below), whose sum is σ = 25276284. Its totient is φ = 25234176.

The previous prime is 25255213. The next prime is 25255247. The reversal of 25255229 is 92255252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14212900 + 11042329 = 3770^2 + 3323^2 .

It is a cyclic number.

It is not a de Polignac number, because 25255229 - 2⁴ = 25255213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25255195 and 25255204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25255249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8612 + ... + 11165.

It is an arithmetic number, because the mean of its divisors is an integer number (6319071).

Almost surely, 2^25255229 is an apocalyptic number.

It is an amenable number.

25255229 is a deficient number, since it is larger than the sum of its proper divisors (21055).

25255229 is a wasteful number, since it uses less digits than its factorization.

25255229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21054.

The product of its digits is 18000, while the sum is 32.

The square root of 25255229 is about 5025.4580885726. The cubic root of 25255229 is about 293.3934654903.

The spelling of 25255229 in words is "twenty-five million, two hundred fifty-five thousand, two hundred twenty-nine".