25012238 has 8 divisors (see below), whose sum is σ = 37647288. Its totient is φ = 12463144.

The previous prime is 25012231. The next prime is 25012241. The reversal of 25012238 is 83221052.

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

It is a super-2 number, since 2×25012238² = 1251224099537288, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25012231) 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, 20756 + ... + 21927.

It is an arithmetic number, because the mean of its divisors is an integer number (4705911).

Almost surely, 2^25012238 is an apocalyptic number.

25012238 is a deficient number, since it is larger than the sum of its proper divisors (12635050).

25012238 is a wasteful number, since it uses less digits than its factorization.

25012238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42978.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 25012238 is about 5001.2236502680. The cubic root of 25012238 is about 292.4494782102.

The spelling of 25012238 in words is "twenty-five million, twelve thousand, two hundred thirty-eight".