25238285 has 8 divisors (see below), whose sum is σ = 32067576. Its totient is φ = 19002880.

The previous prime is 25238281. The next prime is 25238293. The reversal of 25238285 is 58283252.

It can be written as a sum of positive squares in 4 ways, for example, as 10843849 + 14394436 = 3293^2 + 3794^2 .

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

It is not a de Polignac number, because 25238285 - 2² = 25238281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25238281) 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, 148376 + ... + 148545.

It is an arithmetic number, because the mean of its divisors is an integer number (4008447).

Almost surely, 2^25238285 is an apocalyptic number.

It is an amenable number.

25238285 is a deficient number, since it is larger than the sum of its proper divisors (6829291).

25238285 is a wasteful number, since it uses less digits than its factorization.

25238285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296943.

The product of its digits is 38400, while the sum is 35.

The square root of 25238285 is about 5023.7719892527. The cubic root of 25238285 is about 293.3278372191.

The spelling of 25238285 in words is "twenty-five million, two hundred thirty-eight thousand, two hundred eighty-five".